1.ApplicationNumber: US-31581802-A
1.PublishNumber: US-6916813-B2
2.Date Publish: 20050712
3.Inventor: ATWAL KARNAIL S.
GROVER GARY J.
DING CHARLES Z.
STEIN PHILIP D.
LLOYD JOHN
AHMAD SALEEM
HAMANN LAWRNCE G.
GREEN DAVID
FERRARA FRANCIS N.

4.Inventor Harmonized: ATWAL KARNAIL S(US)
GROVER GARY J(US)
DING CHARLES Z(US)
STEIN PHILIP D(US)
LLOYD JOHN(US)
AHMAD SALEEM(US)
HAMANN LAWRNCE G(US)
GREEN DAVID(US)
FERRARA FRANCIS N(US)

5.Country: US
6.Claims:
(en)Compounds having the formula (I), and pharmaceutically acceptable salts thereof,


are useful for modulating mitochondrial F 1 F 0 ATPase activity and treating ischemic conditions including myocardial infarction, congestive heart failure, and cardiac arrhythmias.

7.Description:
(en)RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Application No. 60/339,108 filed Dec. 10, 2001.


FIELD OF THE INVENTION
This invention relates to compounds that inhibit nitochondrial F 1 F 0 ATP hydrolase and are useful for treating ischemia-related diseases. The invention further pertains to methods of treating conditions associated with depleted levels of adenosine triphosphate (ATP) due to hydrolysis by mitochondrial F 1 F 0 ATPase.
BACKGROUND OF THE INVENTION
Ischemic heart disease is a common and serious health problem. Every year, large numbers of patients die from ischemic heart disease and its complications. Many others experience acute myocardial infarcation, congestive heart failure, cardiac arrhythmias, or other disorders.
Myocardial ischemia exists when the heart tissue experiences a demand for oxygen and substrates that exceed the supply. Imbalances between oxygen supply and demand span a large range, and thus, there are various syndromes and biochemical pathways involved in the pathogenesis of ischemia, e.g., from low-grade to severe ischemic conditions. For example, chronic stable angina pectoris is a low-grade condition, in which the resting coronary blood flood may be normal but the blood flow reserve is insufficient to meet an increased energy demand. In more extreme situations, the ischemic muscle can develop an impaired contractile function and potential to generate arrhythmias. Major consequences of myocardial ischemia include mechanical and electrical dysfunction, muscle cell damage, and development of necrosis. Acute ischemic events may develop where there is coronary atherosclerosis. Ultimately, if the ischemia is sufficiently severe there will be an immediate reduction (or cessation) of contractile function in the heart.
The impairment of contractile function in ischemic muscle is associated with mitochondrial levels of adenosine triphosphate (ATP) and adenosine triphosphatases (ATPases). ATPases are enzymes that typically catalyze the hydrolysis of ATP, the main energy currency in cells, to adenosine monophosphate (AMP) or adenosine diphosphate (ADP), plus phosphate ions and energy. The contractile function of the heart is regulated by the transport of calcium, sodium, and potassium ions, which in turn is modulated by ATP and ATPases. More particularly, intracellular ATP is split by Na+,K+ATPase, an enzyme that is responsible for maintaining a gradient of sodium and potassium ions across the cell membrane. The splitting of ATP by Na+,K+ATPase releases the energy needed to transport K+ and Na + ions against concentration gradients. This enables the existence of a resting potential in the membrane (i.e, Na+ out, K+ in) which initiates the contractile response. Contraction is triggered by Na/Ca exchange and Ca 2+ transport, the energy for which is generated by the hydrolysis of ATP by Ca 2+ ATPase.
To maintain homeostasis, the cells' supply of ATP must be replenished as it is consumed (e.g., with muscle contraction). During the steady state, the rate of ATP synthesis needs to be closely matched to its rate of consumption. Arguably, the most important ATPase is the mitochondrial F 1 F 0 -ATPase. Unlike other ATPases which function typically to hydrolyze ATP and release energy, the F 1 F 0 -ATPase has both hydrolytic and synthetic states. As “ATP synthase”, the mitochondrial F 1 F 0 -ATPase catalyzes the production of ATP via oxidative phosphorylation of ADP and P i . Thus, F 1 F 0 -ATPase is responsible for producing the cell's main energy source, ATP. In normoxic conditions, mitochondrial F 1 F 0 -ATPase modulates this ATP production via its two units, the F 1 and F 0 complexes. F 0 is the inner membrane domain, and F 1 is a catalytic domain consisting of five subunits ((αβχδε—the catalytic site is on the β unit), that protrude from the F 0 domain into the mitochondrial matrix. When sufficient levels of oxygen are present, electrons from ATPase substrates are transferred to oxygen, and protons are transported out of the mithcondrial matrix. This proton/electron transport creates an electrochemical proton gradient across the mitochondrial membrane and through the F 0 domain which drives the F 1 domain to synthesize ATP.
In ischemic conditions, however, this electrochemical gradient collapses, and F 1 F 0 -ATPase switches to its hydrolytic state. This hydrolysis of ATP seems to serve no useful purpose. Also, as F 1 F 0 -ATPase operates in its hydrolytic state there is a down-regulation of F 1 F 0 -ATP synthase. F 1 F 0 -ATP synthase activities in vesicles from ischemic muscle typically are substantially (up to ˜50-80%) less than those of control muscle. A native peptide called IF 1 inhibitor protein (or IF 1 ) may be bound to the F 1 unit under ischemic conditions to inhibit the ATP hydrolase activity of the enzyme; however, IF 1 is highly pH dependent and in severe conditions can provide only a modicum of control. The conversion of F 1 F 0 -ATP synthase to F 1 F 0 -ATP hydrolase is reversible, as addition of substrate and oxygen to the mitochondria of ischemic muscle can reactivate the F 1 F 0 -ATPase and ATP levels to control levels.
As may be appreciated, in ischemic conditions the activity of F 1 F 0 -ATPase produces a futile cycling and waste of ATP. It is believed that this depletion of ATP and/or ATP synthase may suppress the Na+K+ pump to increase cardiac contractility, vasoconstriction, sensitivity to vasoactive agents, and arterial blood pressure. Several inhibitors of F 1 F 0 -ATPase have been described, including efrapeptin, oligomycin, autovertin B, and azide. Oligomycin targets F 0 and reportedly postpones cell injury by preserving ATP during ischemia. However, the only known inhibitors of F 1 F 0 -ATPase are large proteins or peptides which are not orally bioavailable.
The instant invention provides N-substituted-N′-(1-phenyl-2-heteraryl)ethyl-guanidine compounds including cyanoguanidine and benzoylguanidine compounds that are potent and selective inhibitors of F 1 F 0 -ATP hydrolase. The compounds of the present invention are useful in treating or preventing conditions associated with ischemia, particularly myocardial ischemia and associated conditions, such as muscle cell damage, necrosis, and cardiac arrhythmias. Also, in view of their inhibitory activity, the inventive compounds may be used to treat cancer and tumor growth. Cyano-guanidine based compounds for treating various other indications (e.g., diseases relating to the CNS-system, gastric secretion, inflammation, HIV, etc.) are disclosed in Shimada et al, “ Synthesis and Gastric Antisecretory Activity of N - Cyano - N ′( phenyl - pyridinylmethyl ) guanidine Derivatives,” Chem. Pharm. Bull ., Vol. 32(12), (1984), at pp. 4893-4906; WO 00/35449 , “N - Ureidoalkyl - Piperidines as Modulators of Chemokine Receptor Activity ,” to Du Pont Pharmaceuticals Co.; U.S. Pat. No. 5,478,845 , “Piperidine Derivatives ,” issued Dec. 26, 1995 and assigned to Novo Nordisk A/S; WO 93/05026 , “Peptide Isoters Containing a Heterocycle as H.I.V. Inhibitors ,” to Smith-Kline Beecham Corp.; and WO 00/43415 , “Compounds which Inhibit Leukocyte Adhesion Mediated by VLA -4,” to Elan Pharmaceuticals, Inc. Cyano-guanidine compounds useful for lowering blood pressure or treating thrombotic or platelet aggregating conditions are disclosed in U.S. Pat. No. 5,521,177, U.S. Pat. No. 5,482,948, and WO 96/23771.
Each of the patents, patent applications and publications referred to in this application are incorporated herein by reference.
SUMMARY OF THE INVENTION
The invention is directed to compounds having the formula (I):


or a pharmaceutically-acceptable salt, hydrate, or prodrug thereof, wherein:
R 1 is cyano, —SO 2 R 8 , —C(═O)R 9 , or heteroaryl; R 2 is (i) independently hydrogen, alkyl, or substituted alkyl, or (ii) taken together with R 3 forms a heterocyclo; R 3 is (i) independently alkyl, substituted alkyl, alkylthio, aminoalkyl, carbamyl, A-aryl, A-heterocyclo, A-heteroaryl, or A-cycloalkyl, or (ii) taken together with R 2 forms a heterocyclo; Z is heteroaryl provided that when R 1 is cyano, Z is not 2-pyridinyl; A is a bond, C 1-4 alkylene, C 2-4 alkenylene, substituted C 1-4 alkylene, substituted C 2-4 alkenylene, —C(═O)NR 19 —, —C 1-4 alkylene-C(═O)NR 19 —, or substituted C 1-4 alkylene-C(═O)NR 19 —; R 4 at each occurrence is selected independently of each other R 4 from the group consisting of halogen, alkyl, haloalkyl, nitro, cyano, haloalkoxy, OR 25 , SR 25 , NR 25 R 26 , NR 25 SO 2 R 27 , SO 2 R 27 , SO 2 NR 25 R 26 , CO 2 R 26 , C(═O)R 26 , C(═)NR 25 R 26 , OC(═O)R 25 , —OC(═O)NR 25 R 26 , NR 25 C(═O)R 26 , NR 25 CO 2 R 26 , aryl, heteroaryl, heterocyclo and cycloalkyl; R 8 is alkyl, substituted alkyl, aryl, or heteroaryl; R 9 is —NR 10 R 11 , alkyl, substituted alkyl, alkoxy, alkylthio, cycloalkyl, aryl, heteroaryl, heterocycle, or —CO 2 R 12 ; R 10 and R 11 , are (i) independently selected from hydrogen, alkyl, substituted alkyl, alkoxy, heterocyclo, cycloalkyl, aryl, and heteroaryl; or (ii) taken together form a heterocyclo or heteroaryl; R 12 and R 19 are hydrogen or alkyl; R 25 and R 26 are independently selected from hydrogen, alkyl, or substituted alkyl, or taken together form a heterocyclo or heteroaryl ring; R 27 is alkyl or substituted alkyl, and q is 0, 1, 2, or 3.

Also included within the scope of the invention are pharmaceutical compositions comprising one or compounds of formula (I), and methods of treating ischemic conditions and/or conditions associated with depleted levels of adenosine triphosphate (ATP) and/or the activity of mitochondrial F 1 F 0 ATPase. These methods comprise administering an effective amount of at least one compound of formula (I) to a patient in need thereof. Additionally, applicants have discovered that F 1 F 0 -ATP hydrolase can be selectively inhibited via use of a small organic molecule, i.e., a non-peptidic organic compound having less than 1000 molecular weight, and this invention is also claimed herein.


DETAILED DESCRIPTION OF THE INVENTION
The following are definitions of terms used in this specification. The initial definition provided for a group or term herein applies to that group or term throughout the present specification, individually or as part of another group, unless otherwise indicated.
The term “alkyl” refers to straight or branched chain hydrocarbon groups having 1 to 12 carbon atoms, preferably 1 to 8 carbon atoms. Lower alkyl groups, that is, alkyl groups of 1 to 4 carbon atoms, are most preferred.
The term “substituted alkyl” refers to an alkyl group as defined above having one, two, three, or four substituents selected from the group consisting of halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OR a , SR a , NR a R b , NR a SO 2 , NR a SO 2 R c , SO 2 R c , SO 2 NR a R b , CO 2 R a , C(═O)R a , C(═O)NR a R b , OC(═O)R a , —OC(═O)NR a R b , NR a C(═O)R b , NR a CO 2 R b , ═N—OH, ═N—O-alkyl, aryl, heteroaryl, heterocyclo and cycloalkyl, wherein R a and R b are selected from hydrogen, alkyl, alkenyl, cycloalkyl, heterocyclo, aryl, and heteroaryl, and R c is selected from hydrogen, alkyl, cycloalkyl, heterocyclo aryl and heteroaryl. When a substituted alkyl includes an aryl, heterocyclo, heteroaryl, or cycloalkyl substituent, said ringed systems are as defined below and thus may in turn have zero to four substituents (preferably 0-2 substituents), also as defined below. When either R a , R b or R c is an alkyl, said alkyl may optionally be substituted with 1-2 of halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OH, O(alkyl), phenyloxy, benzyloxy, SH, S(alkyl), NH 2 , NH(alkyl), N(alkyl) 2 , NHSO 2 , NHSO 2 (alkyl), SO 2 (alkyl), SO 2 NH 2 , SO 2 NH(alkyl), CO 2 H, CO 2 (alkyl), C(═O)H, C(═O)alkyl, C(═O)NH 2 , C(═O)NH(alkyl), C(═O)N(alkyl) 2 , OC(═O)alkyl, —OC(═O)NH 2 , —OC(═O)NH(alkyl), NHC(═O)alkyl, and/or NHCO 2 (alkyl). “Alkyl” when used in conjunction with another group such as in arylalkyl refers to a substituted alkyl in which at least one of the substituents is the specifically-named group. For example, the term arylalkyl includes benzyl, or any other straight or branched chain alkyl having at least one aryl group attached at any point of the alkyl chain. As a further example, the term carbamylalkyl includes the group —(CH 2 ) n —NH—C(═O)alkyl, wherein n is 1 to 12.
The term “alkenyl” refers to straight or branched chain hydrocarbon groups having 2 to 12 carbon atoms and at least one double bond. Alkenyl groups of 2 to 6 carbon atoms and having one double bond are most preferred.
The term “alkynyl” refers to straight or branched chain hydrocarbon groups having 2 to 12 carbon atoms and at least one triple bond. Alkynyl groups of 2 to 6 carbon atoms and having one triple bond are most preferred.
The term “alkylene” refers to bivalent straight or branched chain hydrocarbon groups having 1 to 12 carbon atoms, preferably 1 to 8 carbon atoms, e.g., {—CH 2 —} n , wherein n is 1 to 12, preferably 1-8. Lower alkylene groups, that is, alkylene groups of 1 to 4 carbon atoms, are most preferred. The terms “alkenylene” and “alkynylene” refer to bivalent radicals of alkenyl and alknyl groups, respectively, as defined above.
When reference is made to a substituted alkylene, alkenylene, or alkynylene group, these groups are substituted with one to four substitutents as defined above for alkyl groups. A substituted alkylene, alkenylene, or alkynylene may have a ringed substituent attached in a spiro fashion as in


and so forth.

The term “alkoxy” refers to an alkyl or substituted alkyl group as defined above having one, two or three oxygen atoms (—O—) in the alkyl chain. For example, the term “alkoxy” includes the groups —O—C 1-12 alkyl, —C 1-6 alkylene-O—C 1-6 alkyl, —C 1-4 alkylene-O-phenyl, and so forth.
The term “thioalkyl” or “alkylthio” refers to an alkyl or substituted alkyl group as defined above having one or more sulfur (—S—) atoms in the alkyl chain. For example, the term “thioalkyl” or “alkylthio” includes the groups —(CH 2 ) n —S—CH 2 aryl, —(CH 2 ) n —S—aryl, etc. etc.
The term “aminoalkyl” refers to an alkyl or substituted alkyl group as defined above having one or more nitrogen (—NR′—) atoms in the alkyl chain. For example, the term “aminoalkyl” includes the groups —NR′—C 1-12 alkyl and —CH 2 —NR′-aryl, etc. (where R′ is hydrogen, alkyl or substituted alkyl as defined above.) “Amino” refers to the group —NH 2 .
When a subscript is used as in C 1-8 alkyl, the subscript refers to the number of carbon atoms the group may contin. Zero when used in a subscript denotes a bond, e.g., C 0-4 alkyl refers to a bond or an alkyl of 1 to 4 carbon atoms. When used with alkoxy, thioalkyl or aminoalkyl, a subscript refers to the number of carbon atoms that the group may contain in addition to heteroatoms. Thus, for example, monovalent. C 1-2 aminoalkyl includes the groups —CH 2 —NH 2 , —NH—CH 3 , —(CH 2 ) 2 —NH 2 , —NH—CH 2 —CH 3 , —CH 2 —NH 2 —CH 3 , and —N—(CH 3 ) 2 . A lower aminoalkyl comprises an aminoalkyl having one to four carbon atoms.
The alkoxy, thioalkyl, or aminoalkyl groups may be monovalent or bivalent. By “monovalent” it is meant that the group has a valency (i.e., power to combine with another group), of one, and by “bivalent” it is meant that the group has a valency of two. For example, a monovalent alkoxy includes groups such as —O—C 1-12 alkyl, —C 1-6 alkylene-O—C 1-6 alkyl, etc., whereas a bivalent alkoxy includes groups such as —O—C 1-2 alkylene-, —C 1-6 alkylene-O—C 1-6 alkylene-, etc.
The term “acyl” refers to a carbonyl


linked to an organic group i.e.,


wherein R d may be selected from alkyl, alkenyl, substituted alkyl, substituted alkenyl, aryl, heterocyclo, cycloalkyl, or heteroaryl, as defined herein.

The term “alkoxycarbonyl” refers to a group having a carboxy or ester group


linked to an organic radical, i.e.,


wherein R d is as defined above for acyl.

The term “carbamyl” refers to a functional group in which a nitrogen atom is directly bonded to a carbonyl, i.e., as in —NR e C(═O)R f or —C(═O)NR e R f , wherein R e and R f can be hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkoxy, cycloalkyl, aryl, heterocyclo, or heteroaryl, or they may join to form a ring.
The term “sulfonyl” refers to a sulphoxide group (i.e., —S(O) 1-2 ) linked to an organic radical R c , as defined above.
The term “sulfonamide” or “sulfonamido” refers to the group —S(O) 2 NR e R f , wherein R e and R f are as defined above. Preferably when one of R e and R f is optionally substituted heteroaryl or heterocycle (as defined below), the other of R e and R f is hydrogen or alkyl.
The term “cycloalkyl” refers to fully saturated and partially unsaturated hydrocarbon rings of 3 to 9, preferably 3 to 7 carbon atoms. The term “cycloalkyl” includes such rings having zero to four substituents (preferably 0-2 substituents), selected from the group consisting of halogen, alkyl, substituted alkyl (e.g., trifluoromethyl), alkenyl, substituted alkenyl, alkynyl, nitro, cyano, keto, OR d , SR d NR d R e NR c SO 2 , NR c SO 2 R e , C(═O)H, acyl, —CO 2 H, alkoxycarbonyl, carbamyl, sulfonyl, sulfonamide, —OC(═O)R d , ═N—OH, ═N—O-alkyl, aryl, heteroaryl, heterocyclo, a 4 to 7 membered carbocyclic ring, and a five or six membered ketal, e.g., 1,3-dioxolane or 1,3-dioxane, wherein R c , R d and R e are defined as above. The term “cycloalkyl” also includes such rings having a phenyl ring fused thereto or having a carbon-carbon bridge of 3 to 4 carbon atoms. Additionally, when a cycloalkyl is substituted with a further ring, i.e., aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocyclo, heterocycloalkyl, cycloalkylalkyl, or a further cycloalkyl ring, such ring in turn may be substituted with one to two of C 0-4 alkyl optionally substituted with halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OH, O(alkyl), phenyloxy, benzyloxy, SH, S(alkyl), NH 2 , NH(alkyl), N(alkyl) 2 , NHSO 2 , NHSO 2 (alkyl), SO 2 (alkyl), SO 2 NH 2 , SO 2 NH(alkyl), CO 2 H, CO 2 (alkyl), C(═O)H, C(═O)alkyl, C(═O)NH 2 , C(═O)NH(alkyl), C(═O)N(alkyl) 2 , OC(═O)alkyl, —OC(═O)NH 2 , —OC(═O)NH(alkyl), NHC(═O)alkyl, and NHCO 2 (alkyl).
The term “halo” or “halogen” refers to chloro, bromo, fluoro and iodo.
The term “haloalkyl” means a substituted alkyl having one or more halo substituents. For example, “haloalkyl” includes mono, bi, and trifluoromethyl.
The term “haloalkoxy” means an alkoxy group having one or more halo substituents. For example, “haloalkoxy” includes OCF 3 .
The term “aryl” refers to phenyl, biphenyl, 1-naphthyl, 2-naphthyl, and anthracenyl, with phenyl being preferred. The term “aryl” includes such rings having zero to four substituents (preferably 0-2 substituents), selected from the group consisting of halo, alkyl, substituted alkyl (e.g., trifluoromethyl), alkenyl, substituted alkenyl, alkynyl, nitro, cyano, OR d , SR d , NR d R e , NR d SO 2 , NR d SO 2 R c , C(═O)H, acyl, —CO 2 H, alkoxycarbonyl, carbamyl, sulfonyl, sulfonamide, —OC(═O)R d , heteroaryl, heterocyclo, cycloalkyl, phenyl, benzyl, napthyl, including phenylethyl, phenyloxy, and phenylthio, wherein R c , R d and R e are defined as above. Additionally, two substituents attached to an aryl, particularly a phenyl group, may join to form a further ring such as a fused or spiro-ring, e.g., cyclopentyl or cyclohexyl or fused heterocycle or heteroaryl. When an aryl is substituted with a further ring, such ring in turn may be substituted with one to two of CO 4 alkyl optionally substituted with halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OH, O(alkyl), phenyloxy, benzyloxy, SH, S(alkyl), NH 2 , NH(alkyl), N(alkyl) 2 , NHSO 2 , NHSO 2 (alkyl), SO 2 (alkyl), SO 2 NH 2 , SO 2 NH(alkyl), CO 2 H, CO 2 (alkyl), C(═O)H, C(═O)alkyl, C(═O)NH 2 , C(═O)NH(alkyl), C(═O)N(alkyl) 2 , OC(═O)alkyl, —OC(═O)NH 2 , —OC(═O)NH(alkyl), NHC(═O)alkyl, and NHCO 2 (alkyl).
The term “heterocyclo” refers to substituted and unsubstituted non-aromatic 3 to 7 membered monocyclic groups, 7 to 11 membered bicyclic groups, and 10 to 15 membered tricyclic groups, in which at least one of the rings has at least one heteroatom selected from O, S and N. Each ring of the heterocyclo group containing a heteroatom can contain one or two oxygen or sulfur atoms and/or from one to four nitrogen atoms provided that the total number of heteroatoms in each ring is four or less, and further provided that the ring contains at least one carbon atom. The fused rings completing bicyclic and tricyclic groups may contain only carbon atoms and may be saturated, partially saturated, or unsaturated. The nitrogen and sulfur atoms may optionally be oxidized and the nitrogen atoms may optionally be quaternized. The heterocyclo group may be attached at any available nitrogen or carbon atom. The heterocyclo ring may contain zero to four substituents (preferably 0-2 substituents), selected from the group consisting of halo, alkyl, substituted alkyl (e.g., trifluoromethyl), alkenyl, substituted alkenyl, alkynyl, nitro, cyano, keto, OR d , SR d , NR d R e , NR d SO 2 , NR d SO 2 R c , SO 2 R d , C(═O)H, acyl, —CO 2 H, alkoxycarbonyl, carbamyl, sulfonyl, sulfonamide, —OC(═O)R d , ═N—OH, ═N—O-alkyl, aryl, heteroaryl, cycloalkyl, a five or six membered ketal, e.g., 1,3-dioxolane or 1,3-dioxane, or a monocyclic 4 to 7 membered non-aromatic ring having one to four heteroatoms, wherein R c , R d and R e are defined as above. The term “heterocyclo” also includes such rings having a phenyl ring fused thereto or having a carbon-carbon bridge of 3 to 4 carbon atoms. Additionally, when a heterocyclo is substituted with a further ring, i.e., aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyl, or a further heterocyclo ring, such ring in turn may be substituted with one to two of C 0-4 alkyl optionally substituted with halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OH, O(alkyl), phenyloxy, benzyloxy, SH, S(alkyl), NH2, NH(alkyl), N(alkyl)2, NHSO2, NHSO2(alkyl), S02(alkyl), SO 2 NH 2 , SO 2 NH(alkyl), CO 2 H, CO 2 (alkyl), C(═O)H, C(═O)alkyl, C(═O)NH 2 , C(═O)NH(alkyl), C(═O)N(alkyl) 2 , OC(═O)alkyl, —OC(═O)NH 2 , —OC(═O)NH(alkyl), NHC(═O)alkyl, and NHCO 2 (alkyl).
Exemplary monocyclic groups include azetidinyl, pyrrolidinyl, oxetanyl, imidazolinyl, oxazolidinyl, isoxazolinyl, thiazolidinyl, isothiazolidinyl, tetrahydrofuranyl, piperidinyl, piperazinyl, 2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolodinyl, 2-oxoazepinyl, azepinyl, 4-piperidonyl, tetrahydropyranyl, morpholinyl, thiamorpholinyl, thiamorpholinyl sulfoxide, thiamorpholinyl sulfone, 1,3-dioxolane and tetrahydro-1,1-dioxothienyl and the like. Exemplary bicyclic heterocyclo groups include quinuclidinyl.
The term “heteroaryl” refers to substituted and unsubstituted aromatic 5 to 7 membered monocyclic groups, 9 or 10 membered bicyclic groups, and 11 to 14 membered tricyclic groups which have at least one heteroatom selected from O, S and N in at least one of the rings. Each ring of the heteroaryl group containing a heteroatom can contain one or two oxygen or sulfur atoms and/or from one to four nitrogen atoms provided that the total number of heteroatoms in each ring is four or less and each ring has at least one carbon atom. The fused rings completing the bicyclic and tricyclic groups may contain only carbon atoms and may be saturated, partially saturated, or unsaturated. The nitrogen and sulfur atoms may optionally be oxidized and the nitrogen atoms may optionally be quaternized. Heteroaryl groups which are bicyclic or tricyclic must include at least one fully aromatic ring but the other fused ring or rings may be aromatic or non-aromatic. The heteroaryl group may be attached at any available nitrogen or carbon atom of any ring. The heteroaryl ring system may contain zero to four substituents (preferably 0-2 substituents), selected from the group consisting of halo, alkyl, substituted alkyl (e.g., trifluoromethyl), alkenyl, substituted alkenyl, alkynyl, nitro, cyano, OR d , SR d , NR d R e , NR d SO 2 , NR d SO 2 R c , SO 2 R d , C(═O)H, acyl, —CO 2 H, alkoxycarbonyl, carbamyl, sulfonyl, sulfonamide, —OC(═O)R d , heterocyclo, cycloalkyl, aryl, or a monocyclic 4 to 7 membered aromatic ring having one to four heteroatoms, including phenylethyl, phenyloxy, and phenylthio, wherein R c , R d and R e are defined as above. Additionally, when a heteroaryl is substituted with a further ring, i.e., aryl, arylalkyl, heterocyclo, heterocycloalkyl, cycloalkyl, cycloalkylalkyl, heteroarylalkyl, or a further heteroaryl ring, such ring in turn may be substituted with one to two of C 0-4 alkyl optionally substituted with halogen, trifluoromethyl, alkenyl, alkynyl, nitro, cyano, keto (═O), OH, O(alkyl), phenyloxy, benzyloxy, SH, S(alkyl), NH 2 , NH(alkyl), N(alkyl) 2 , NHSO 2 , NHSO 2 (alkyl),n SO 2 (alkyl), SO 2 NH 2 , SO 2 NH(alkyl), CO 2 H, CO 2 (alkyl), C(═O)H, C(═O)alkyl, C(═O)NH 2 , C(═O)NH(alkyl), C(═O)N(alkyl) 2 , OC(═O)alkyl, —OC(═O)NH 2 , —OC(═O)NH(alkyl), NHC(═O)alkyl, and NHCO 2 (alkyl).
Exemplary monocyclic heteroaryl groups include pyrrolyl, pyrazolyl, pyrazolinyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl


thiadiazolyl, isothiazolyl, furanyl, thienyl, oxadiazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl and the like.

Exemplary bicyclic heteroaryl groups include indolyl, benzothiazolyl, benzodioxolyl, benzoxaxolyl, benzothienyl, quinolinyl, tetrahydroisoquinolinyl, isoquinolinyl, benzimidazolyl, benzopyranyl, indolizinyl, benzofuranyl, chromonyl, coumarinyl, benzopyranyl, cinnolinyl, quinoxalinyl, indazolyl, pyrrolopyridyl, furopyridinyl, dihydroisoindolyl, tetrahydroquinolinyl and the like.
Exemplary tricyclic heteroaryl groups include carbazolyl, benzidolyl, phenanthrollinyl, acridinyl, phenanthridinyl, xanthenyl and the like.
Throughout the specification, groups and substituents thereof may be chosen by one skilled in the field to provide stable moieties and compounds.
The compounds of formula I form salts which are also within the scope of this invention. Reference to a compound of the formula I herein is understood to include reference to salts thereof, unless otherwise indicated. The term “salt(s)”, as employed herein, denotes acidic and/or basic salts formed with inorganic and/or organic acids and bases. In addition, when a compound of formula I contains both a basic moiety, such as, but not limited to an amine or a pyridine or imidazole ring, and an acidic moiety, such as, but not limited to a carboxylic acid, zwitterions (“inner salts”) may be formed and are included within the term “salt(s)” as used herein. Pharmaceutically acceptable (i.e., non-toxic, physiologically acceptable) salts are preferred, although other salts are also useful, e.g., in isolation or purification steps which may be employed during preparation. Salts of the compounds of the formula I may be formed, for example, by reacting a compound of the formula I with an amount of acid or base, such as an equivalent amount, in a medium such as one in which the salt precipitates or in an aqueous medium followed by lyophilization.
The compounds of formula I which contain a basic moiety, such as, but not limited to an amine or a pyridine or imidazole ring, may form salts with a variety of organic and inorganic acids. Exemplary acid addition salts include acetates (such as those formed with acetic acid or trihaloacetic acid, for example, trifluoroacetic acid), adipates, alginates, ascorbates, aspartates, benzoates, benzenesulfonates, bisulfates, borates, butyrates, citrates, camphorates, camphorsulfonates, cyclopentanepropionates, digluconates, dodecylsulfates, ethanesulfonates, fumarates, glucoheptanoates, glycerophosphates, hemisulfates, heptanoates, hexanoates, hydrochlorides (formed with hydrochloric acid), hydrobromides (formed with hydrogen bromide), hydroiodides, 2-hydroxyethanesulfonates, lactates, maleates (formed with maleic acid), methanesulfonates (formed with methanesulfonic acid), 2-naphthalenesulfonates, nicotinates, nitrates, oxalates, pectinates, persulfates, 3-phenylpropionates, phosphates, picrates, pivalates, propionates, salicylates, succinates, sulfates (such as those formed with sulfuric acid), sulfonates (such as those mentioned herein), tartrates, thiocyanates, toluenesulfonates such as tosylates, undecanoates, and the like.
The compounds of formula I which contain an acidic moiety, such as, but not limited to a carboxylic acid, may form salts with a variety of organic and inorganic bases. Exemplary basic salts include ammonium salts, alkali metal salts such as sodium, lithium, and potassium salts, alkaline earth metal salts such as calcium and magnesium salts, salts with organic bases (for example, organic amines) such as benzathines, dicyclohexylamines, hydrabamines [formed with N,N-bis(dehydro-abietyl)ethylenediamine], N-methyl-D-glucamines, N-methyl-D-glucamides, t-butyl amines, and salts with amino acids such as arginine, lysine and the like. Basic nitrogen-containing groups may be quaternized with agents such as lower alkyl halides (e.g., methyl, ethyl, propyl, and butyl chlorides, bromides and iodides), dialkyl sulfates (e.g., dimethyl, diethyl, dibutyl, and diamyl sulfates), long chain halides (e.g., decyl, lauryl, myristyl and stearyl chlorides, bromides and iodides), aralkyl halides (e.g., benzyl and phenethyl bromides), and others.
Compounds of the formula I, and salts thereof, may exist in their tautomeric form (for example, as an amide or imino ether). All such tautomeric forms are contemplated herein as part of the present invention.
All stereoisomers of the present compounds, such as those, for example, which may exist due to asymmetric carbons, including enantiomeric forms (which may exist even in the absence of asynmmetric carbons) and diastereomeric forms, are contemplated and within the scope of this invention. Individual stereoisomers of the compounds of this invention may, for example, be substantially free of other isomers, or may be admixed, for example, as racemates or with all other or other selected, stereoisomers. The chiral centers of the present invention can have the S or R configuration as defined by the IUPAC 1974 Recommendations.
In addition, compounds of the formulas I may have prodrug forms. Any compound that will be converted in vivo to provide the bioactive agent (i.e., a compound of formula I) is a prodrug within the scope and spirit of the invention.
For example, pro-drug compounds of the formulas I may be carboxylate ester moieties. A carboxylate ester may be conveniently formed by esterifying any of the carboxylic acid functionalities found on the disclosed ring structure(s).
Various forms of prodrugs are well known in the art. For examples of such prodrug derivatives, see:
a) Design of Prodrugs , edited by H. Bundgaard, (Elsevier, 1985), and Methods in Enzymology , Vol. 42, p. 309-396, edited by K. Widder, et. al. (Academic Press, 1985); b) A Textbook of Drug Design and Development , edited by Krosgaard-Larsen and H. Bundgaard, Chapter 5, “Design and Application of Prodrugs,” by H.

Bundgaard, p. 113-191 (1991);
c) H. Bundgaard, Advanced Drug Delivery Reviews , Vol. 8, p. 1-38 (1992); d) H. Bundgaard, et al., Journal of Pharmaceutical Sciences , Vol. 77, p. 285 (1988); and e) N. Kakeya, et. al., Chem Phar Bull , Vol. 32, p. 692 (1984).

It should further be understood that solvates (e.g., hydrates) of the compounds of formula I are also with the scope of the present invention. Methods of solvation are generally known in the art.
Preferred Compounds
Preferred compounds of the present invention are those having the following formula, or salts, hydrates, and prodrugs thereof,


in which:
Z is triazolyl optionally substituted with one to two R 7 or imidazolyl optionally substituted with one to two R 7 and/or having fused thereto a benzene ring in turn optionally substituted with one to two R 7 ; R 1 is cyano or —C(═O)R 9 ; R 2 is hydrogen, alkyl, or benzyl; R 3 is aryl or arylalkyl optionally substituted with alkyl, halogen, trifluoromethyl, OCF 3 , cyano, nitro, amino, hydroxy, or methoxy; R 4 is halogen, alkyl, trifluoromethyl, or OCF 3 ; R 7 is alkyl, carbamyl or carbamylC 1-4 alkyl; R 9 is —NR 10 R 11 , alkyl, substituted alkyl, alkoxy, alkylthio, cycloalkyl, aryl, heteroaryl, heterocycle, or —CO 2 R 12 ; R 10 and R 11 are (i) independently selected from hydrogen, alkyl, substituted alkyl, alkoxy, heterocyclo, cycloalkyl, aryl, and heteroaryl; or (ii) taken together form a heterocyclo or heteroaryl; R 12 is hydrogen or alkyl; and q is 0, 1, 2, or 3.

Further preferred are compounds having the following formula, or salts, hydrates, or prodrugs thereof,


in which

Y is N or CR 7c ; R 1 is cyano or —C(═O)R 9 ; R 2 is hydrogen or C 1-4 alkyl; R 4 is halogen, C 1-4 alkyl, trifluoromethyl, or OCF 3 ; R 7a , R 7b and R 7c are alkyl, carbamyl or carbamylC 1-4 alkyl, or R 7a and R 7c join to form an optionally substituted fused phenyl ring; R 9 is —NR 10 R 11 , alkyl, substituted alkyl, alkoxy, alkylthio, cycloalkyl, aryl, heteroaryl, heterocycle, or —CO 2 R 12 ; R 10 and R 11 are (i) independently selected from hydrogen, alkyl, substituted alkyl, alkoxy, heterocyclo, cycloalkyl, aryl, and heteroaryl; or (ii) taken together form a heterocyclo or heteroaryl; R 12 is hydrogen or alkyl; R 23 is hydrogen, alkyl, hydroxyalkyl, or phenyl; R 24 is alkyl, halogen, trifluoromethyl, cyano, halogen, hydroxy, OCF 3 , methoxy, phenyloxy, benzyloxy, cyano, or acyl, or two R 24 groups join to form a fused cycloalkyl or benzene ring; q is 1 or 2; x is 0, 1, or 2; and y is 0, 1, 2, or 3.

More preferred are compounds having the following formula, or salts, hydrates, or prodrugs thereof,

R 1 is cyano or —C(═O)R 9 ; R 4 is halogen, C 1-4 alkyl, trifluoromethyl, or OCF 3 ; R 7 and R 7c join to form a fused benzene ring optionally substituted with C 1-4 alkyl or —(CH 2 ) 1-2 —NHC(═O)C 1-4 alkyl, R 7b is hydrogen, C 1-4 alkyl, or —(CH 2 ) 1-2 —NHC(═O)C 1-4 alkyl; R 9 is a) —NR 10 R 11;
b) C 1-8 alkyl optionally substituted with one to two of:
i) SR 13 , OR 13 , NR 13a R 13b , halogen, trifluoromethyl, CO 2 R 13a , and C(═O)NR 13a R 13b ; ii) cycloalkyl optionally substituted with one to two of C(═O)H, C 1-4 acyl, alkenyl, carbamyl, and/or phenyl in turn optionally substituted with halogen; iii) phenyl or napthyl optionally substituted with one to two of halogen, nitro, amino, alkyl, hydroxy, C 1-4 alkoxy, or having fused thereto a five or six membered heterocyclo; iv) pyridinyl, thiophenyl, furanyl, tetrahydrofuranyl, or azepinyl, optionally substituted with alkyl or having fused thereto a five to six membered carbocyclic ring optionally substituted with keto or C 1-4 alkoxy;
c) C 1-4 alkoxy; d) C 1-4 alkylthio; e) CO 2 alkyl; f) 3 to 6 membered cycloalkyl optionally having up to four substituents selected from alkyl, halogen, cyano, alkenyl, acyl, alkylthio, carbamyl, and/or phenyl in turn optionally substituted with halogen; or having an aryl fused thereto; g) phenyl optionally substituted with one to four of halogen, cyano, trifluoromethyl, nitro, hydroxy, C 1-4 alkoxy, haloalkoxy, C 1-6 alkyl, CO 2 alkyl, SO 2 alkyl, SO 2 NH 2 , amino, NH(C 1-4 alkyl), N(C 1-4 alkyl) 2 , NHC(═O)alkyl, C(═O)alkyl, and/or C 1-4 alkyl in turn optionally substituted with one to three of trifluoromethyl, hydroxy, cyano, phenyl, pyridinyl; and/or a five or six membered heteroaryl or heterocyle in turn optionally substituted with keto or having a benzene ring fused thereto; h) pyridinyl, thiazolyl, furanyl, thiophenyl, and pyrrolyl optionally substituted with one to two of halogen, alkyl, and phenyl in turn optionally substituted with halogen or trifluoromethyl;
R 10 is hydrogen, alkyl, or alkoxy; R 11 is alkyl, substituted alkyl, alkoxy, heterocyclo, cycloalkyl, aryl, or heteroaryl; or R 10 and R 11 , taken together form a heterocyclo or heteroaryl; R 23 is hydrogen, alkyl, hydroxyalkyl, or phenyl; R 24 is alkyl, halogen, trifluoromethyl, cyano, halogen, hydroxy, OCF 3 , methoxy, phenyloxy, benzyloxy, cyano, or acyl, or two R 24 groups join to form a fused cycloalkyl or benzene ring; q is 0, 1, or 2; x is 0 or 1; and y is 0, 1, or 2.

Most preferred are compounds as immediately defined above wherein R 1 is cyano or —C(═O)R 9 ; R 9 is optionally substituted phenyl or phenyl C 1-4 alkyl; x is 0 or 1; and q and y are 1 or 2.
Utility
The compounds of this invention by inhibiting F 1 F 0 -ATPase may be used to help conserve ATP under conditions of oxygen deprivation. Thus, the compounds may be useful in treating or preventing any condition associated with depleted levels of ATP and/or tissue ischeria (from mild to acute or severe). As used herein with reference to the utilities described below, the terms “treating” or “treatment” encompass both responsive and prophylaxis measures designed to inhibit or delay the onset of the disease or disorder, or to alleviate, ameliorate, lessen, or cure the disease or disorder and/or its symptoms.
In view of their F 1 F 0 -ATPase inhibitory activity, the inventive compounds are useful in treating cardiovascular diseases including, without limitation, congestive heart failure, cardiac arrhythmias, unstable angina, and high blood pressure. The compounds also are useful to treat ischemia, including ischemia resulting from vascular occlusion, cerebral infarction, stroke and related cerebral vascular diseases (including cerebrovascular accident and transient ischemic attack), and accurate coronary syndromes such as myocardial infarction, coronary artery disease, unstable angina, and non-Q wave MI.
Additionally, the compounds are useful in treating or preventing symptoms or consequences occurring from thrombosis and/or the formation of atherosclerotic plaques, atherosclerosis, peripheral arterial disease, coagulation syndromes, and intermittent claudication. The compounds may be used to treat thrombotic or thromboembolic conditions such as thromboembolic stroke (including that resulting from atrial fibrillation 10 or from ventricular mural thrombus); venous thrombosis (including deep vein thrombosis); arterial thrombosis; cerebral thrombosis; pulmonary embolism; cerebral embolism; peripheral occlusive arterial disease (e.g., peripheral arterial disease, intermittent claudication, critical leg ischemia, prevention of amputation, prevention of cardiovascular morbidity such as MI, stroke or death); thromboembolic consequenses of surgery, interventional cardiology or immobility; thromboembolic consequenses of medication (such as oral contraceptives, hormome replacement and heparin); thrombotic consequenses of atherosclerotic vascular disease and atherosclerotic plaque rupture leading to tissue ischemia; prevention of atherosclerotic plaque formation; transplant atherosclerosis; thromboembolic complications of pregancy including fetal loss; thromboembolic consequences of thrombophilia (e.g., Factor V Leiden, and homocystinenimia); prothrombotic consequences and/or complications of cancer; prevention of thrombosis on artificial surfaces (such as stents, blood oxygenators, shunts, vascular access ports, vascular grafts, artificial valves, etc.); coagulopathies (e.g., disseminated intravascular coagulation); coagulation syndromes; vascular remodeling atherosclerosis, restenosis and systemic infection; prevention of metastesis and tumor implantation; diabetic complications including retinopathy, nephropathy and neuropathy; inflammation; Kasabach-Merritt syndrome; atrial fibrillation; ventricular enlargement (including dilated cardiac myopathy and heart failure); restenosis (e.g., following arterial injury-induced either endogenously or exogenously). Compounds of the present invention may be useful for maintaining blood vessel patency in conjunction with vascular surgery including bypass grafting, arterial reconstruction, atherectomy, vascular graft and stent patency, organ, tissue and cell implantation and transplantation. In addition, the compounds of the present invention may be useful for maintaining blood vessel patency in conjunction with interventional cardiology or vascular surgery including bypass grafting, arterial reconstruction, atherectomy, vascular graft and stent patency, organ, tissue and cell implantation and transplantation. Additionally, the compounds may be used for preservation of tissue as related to organ transplantation.
The inventive compounds also are useful in treating diseases or disorders in other tissues or muscles that are associated with ischemic conditions. For example, the compounds may be used to treat muscle cell damage and necrosis.
Additionally, the inventive compounds may be useful as anti-cancer and/or anti-tumor agents. It is reported that inhibitors of mitochondrial FIF 0 -ATPase selectively kill metabolically active tumor cells that do not exhibit the Warburg effect, i.e., cells that do not maintain a high level of anaerobic carbon metabolism even in the presence of oxygen. See Salomon et al., “ Understanding and Exploiting the Mechanistic Basis for Selecivity of Polyketide Inhibitors of F 1 F 0 - ATPase,” Proc. Natl. Acad. Sci . Vol. 97 (26) (2000), at pp. 14766-14771. Accordingly, the compounds of the present invention are useful in treating tumor growth, as an adjunct to chemotherapy, and for treating cancer, more particularly, cancer of the lung, prostate, colon, breast, ovaries, and bone.
The inventive compounds may also be used in combination with other F 1 F 0 -ATPase inhibitors such as efrapeptin, oligomycin, autovertin B, and azide, and/or in combination with other cardiovascular drugs. Additionally, the compounds may be used in combination with other therapeutic agents such as potassium channel openers, calcium channel blockers, sodium hydrogen exchanger inhibitors, anti-arrhythmic agents, thrombin inhibitors, platelet aggregation inhibitors or anti-platelet agents, fibrinogen antatagonists, diuretics, anti-hypertensive agents, mineralocorticoid receptor antagonists; phospodiesterase inhibitors; cholesterol/lipid lowering agents and lipid profile therapies; anti-diabetic agents; anti-depressants; anti-inflammatory agents (steroidal and non-steroidal); anti-oxidant agents; angiogenesis modulators; anti-osteoporosis agents; hormone replacement therapies; oral contraceptives; anti-coagulants; anti-obesity agents; anti-anxiety agents; anti-proliferative agents; anti-tumor agents; anti-ulcer and gastroesophageal reflux disease agents; growth hormone and/or growth hormone secretagogues; thyroid mimetics (including thyroid receptor antagonist); anti-infective agents; anti-viral agents; anti-bacterial agents; and anti-fungal agents.
For example, the inventive compounds may be used in combination with aspirin, clopidogrel, ticlopidine or CS-747, warfarin, and low molecular weight heparins (such as lovenox, enoxaparain, and dalteparin). Other suitable therapeutic agents in combination with which the inventive compounds may be used include:
anti-arrhythmic agents including Class I agents (such as propafenone); Class II agents (propranolol); Class III agents (such as sotalol, dofetilide, amiodarone, azimilide and ibutilide); Class IV agents (such as ditiazem and verapamil); K + channel openers such as IAch inhibitors, and IKur inhibitors (e.g., compounds such as those disclosed in U.S. application Ser. No. 09/729,731, filed Dec. 5, 2000; alpha- or beta- adrenergic blockers (such as propranolol, nadolol and carvedilol), or -β-adrenergic agonists such as albuterol, terbutaline, formoterol, salmeterol, bitolterol, pilbuterol, and/or fenoterol; angiotensin-II receptor antagonists (e.g., irbesartan, losartan or valsartan); anticholinergics such as ipratropium bromide; anti-diabetic agents such as biguamides (e.g. metformin); glucosidase inhibitors (e.g. acarbose); insulins (including insulin secretagogues or insulin sensitizers); meglitinides (e.g. repaglinide); sulfonylureas (e.g., glimepiride, glyburide and glipizide); biguamide/glyburide combinations (e.g., glucovance), thiozolidinediones (e.g. troglitazone, rosiglitazone and pioglitazone), PPAR-alpha agonists, PPAR-gamma agonists, PPAR alpha/gamma dual agonists, SGLT2 inhibitors, inhibitors of fatty acid binding protein (aP2) such as those disclosed in U.S. Ser. No. 09/519,079 filed Mar. 6, 2000 and assigned to the present assignee, glucagon-like peptide-1 (GLP-1), and dipeptidyl peptidase IV (DP4) inhibitors; anti-depressant or anti-anxiety agents such as nefazodone, sertraline, diazepam, lorazepam, buspirone, and hydroxyzine pamoate; anti-diabetic agents such as biguamides (e.g. metformin); glucosidase inhibitors (e.g. acarbose); insulins (including insulin secretagogues or insulin sensitizers); meglitinides (e.g. repaglinide); sulfonylureas (e.g., glimepiride, glyburide and glipizide); biguamide/glyburide combinations (e.g., glucovance), thiozolidinediones (e.g. troglitazone, rosiglitazone and pioglitazone), PPAR-alpha agonists, PPAR-gamma agonists, PPAR alpha/gamma dual agonists, SGLT2 inhibitors, inhibitors of fatty acid binding protein (aP2) such as those disclosed in U.S. Ser. No. 09/519,079 filed Mar. 6, 2000 and assigned to the present assignee, glucagon-like peptide-1 (GLP-1), and dipeptidyl peptidase IV (DP4) inhibitors; anti-hypertensive agents such as angiotensin-converting enzyme (ACE) inhibitors (e.g., captopril, lisinopril, zofenopril, ramipril, fosinopril, enalapril, ceranopril, cilazopril, delapril, pentopril, quinapril), vasopeptidase inhibitors, i.e., dual ACE/NEP inhibitors (e.g., omapatrilat and gemopatrilat), AT-1 receptor antagonists (e.g., losartan, irbesartan, valsartan); ET receptor antagonists (e.g., sitaxsentan, atrsentan and compounds disclosed in U.S. Pat. Nos. 5,612,359 and 6,043,265); Dual ET/AII antagonist (e.g., compounds disclosed in WO 00/01389); neutral endopeptidase (NEP) inhibitors; anti-inflammatory agents such as cromolyn, nedocromil, theophyline, zileuton, zafirlukast, montelcukast and/or pranleukast or cortiocosteroids including beclomethasone, triamcinolone, budesonide, fluticasone, flumisolide or dexamethasone; prednisono; daxamethasone etanercept, protien tyrosine kinase (PTK) inhibitors; cyclooxygenase inhibitors (including NSAIDs, and COX-1 and/or COX-2 inhibitors); aspirin; or indomethacin; lipoxygenase inhibitors; chemokine receptor modulators (including CCR1, CCR2, CCR3, CXCR2 receptor antagonists); secretory and cytoslic phospholipase A2 inhibitors; VLA4 atitagonists; cytokine modulators (e.g. TNF-alpha converting enzyme (TACE) inhibitors, Interleukin-1 converting enzyme (ICE) inhibitors, Interleukin-1 receptor antagonists); angiogenesis modulators such as endostatin; anti-oxidant agents and/or lipid peroxidation inhibitors such as probucol, BO-653, Vitamin A, Vitamin E, AGI-1067; anti-platelet agents such as GPIIb/GPIIIa blockers, (e.g., abciximab, eptifibatide, tirofiban); P2Y 12 antagonists (e.g., clopidogrel, ticlopidine, CS-747); or thromboxane receptor antagonists (e.g., ifetroban); anti-osteoporosis agents including alendronate and raloxifene. anti-obesity agents including orlistat and aP2 inhibitors (such as those disclosed in U.S. Ser. No. 09/519,079 filed Mar. 6, 2000); anti-proliferative agents for use in combination with the compounds of the present invention include cyclosporin A, paclitaxel, FK 506, and adriamycin; anti-ulcer and gastroesophageal reflux disease agents including famotidine, ranitidine, and omeprazole; sodium hydrogen exchanger-1 (NHE-1) inhibitors such as cariporide; calcium channel blocking agents such as verapamil, nifedipine, diltiazem, amlodipine and mybefradil; cardiac glycosides such as digitalis and ouabain; diuretics such as chlorothiazide, hydrochlorothiazide, flumethiazide, hydroflumethiazide, bendroflumethiazide, methylchlorothiazide, trichloromethiazide, polythiazide, benzthiazide, ethacrynic acid tricrynafen, chlorthalidone, furosemide, musolimine, bumetamide, triamtrenene, amiloride; hormone replacement therapies including estrogen (e.g., congugated estrogens) and estradiol; lipid profile modulators including HMG-CoA reductase inhibitors (e.g., pravastatin, simvastatin, atorvastatin, fluvastatin, cerivastatin, AZ4522, itavastatin [Nissan/Kowa]), ZD-4522 (a.k.a. rosuvastatin, or atavastatin or visastatin)); squalene synthetase inhibitors; fibrates; bile acid sequestrants (such as questran); ACAT1 inhibitors; ACAT2 inhibitors; dual ACAT1/2 inhibitors; MTP inhibitors; cholesterol absorption inhibitors; and cholesterol ester transfer protein inhibitors (e.g., CP-529414); PPAR-delta agonists; PPAR-alpha agonists; dual PPAR-alpha/delta agonists; LXR-alpha agonists; LXR-beta agonists; LXR dual alpha/beta agonists; mineralocorticoid receptor antagonists such as spironolactone and eplirinone. microsomal triglyceride transport protein inhibitors (such as disclosed in U.S. Pat. Nos. 5,739,135, 5,712,279 and 5,760,246); phosphodiesterase (PDE) inhibitors including dipyridamole, cilostazol, or sildenafil, or PDE inhibitors in combination with aspirin, ifetroban, picotamide, ketanserin, clopidogrel, and/or thromboxane receptor antagonists or thromboxane A synthetase inhibitors (such as picotamide); serotonin-2-receptor antagonists (such as ketanserin), fibrinogen receptor antagonists, and thrombolytic agents, such as tissue plasminogen activator (natural or recombinant), streptokinase, reteplase, activase, lanoteplase, urokinase, prourokinase, tenecteplase (TNK), lanoteplase (nPA), anisolated,streptokinase plasminogen activator complex (ASPAC), factor VIIa inhibitors, factor Xa inhibitors, thrombin inhibitors (such as hirudin and argatroban), animal salivary gland plasminogen activators, PAI-1 inhibitors such as XR-330 and T-686, and inhibitors of α-2-antiplasmin such as anti-α-2-antiplasmin antibody, prostacyclin mimetics.

The inventive compounds may also be useful in combination with other anticancer strategies and chemotherapies such as taxol and/or cisplatin. The compounds may be used in conjunction with anti-tumor agents such as paclitaxel, adriamycin, epithilones, cisplatin, and carboplatin.
The various other therapeutic agents described above may be employed in the same dosage form with the compound of formula I or in different dosage forms, in dosages and regimens as generally known in the art or in the PDR.
The compounds of the present invention may act in a synergistic fashion with one or more of the above agents to allow for increased efficacy and/or reduced doses of any of the above agents and therefore minimize potential hemorrhagic side-effects.
The compounds of formula I may be administered by any means suitable for the condition to be treated. Systematic treatment is typically preferred for cancerous conditions, although other modes of delivery are contemplated. The compounds may be delivered orally, such as in the form of tablets, capsules, granules, powders, or liquid formulations including syrups; sublingually; bucally; transdermally; parenterally, such as by subcutaneous, intravenous, intramuscular or intrasternal injection or infusion (e.g., as sterile injectable aqueous or non-aqueous solutions or suspensions); nasally such as by inhalation spray; rectally such as in the form of suppositories; or liposomally. Dosage unit formulations containing non-toxic, pharmaceutically acceptable vehicles or diluents may be administered. The compounds may be administered in a form suitable for immediate release or extended release. Immediate release or extended release may be achieved with suitable pharmaceutical compositions or, particularly in the case of extended release, with devices such as subcutaneous implants or osmotic pumps.
Exemplary compositions for oral administration include suspensions which may contain, for example, microcrystalline cellulose for imparting bulk, alginic acid or sodium alginate as a suspending agent, methylcellulose as a viscosity enhancer, and sweeteners or flavoring agents such as those known in the art; and immediate release tablets which may contain, for example, microcrystalline cellulose, dicalcium phosphate, starch, magnesium stearate and/or lactose and/or other excipients, binders, extenders, disintegrants, diluents and lubricants such as those known in the art. The inventive compounds may be orally delivered by sublingual and/or buccal administration, e.g., with molded, compressed, or freeze-dried tablets. Exemplary compositions may include fast-dissolving diluents such as mannitol, lactose, sucrose, and/or cyclodextrins. Also included in such formulations may be high molecular weight excipients such as celluloses (AVICEL®) or polyethylene glycols (PEG); an excipient to aid mucosal adhesion such as hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), sodium carboxymethyl cellulose (SCMC), and/or maleic anhydride copolymer (e.g., GANTREZ®); and agents to control release such as polyacrylic copolymer (e.g., CARBOPOL 934®). Lubricants, glidants, flavors, coloring agents and stabilizers may also be added for ease of fabrication and use.
Exemplary compositions for nasal aerosol or inhalation administration include solutions which may contain, for example, benzyl alcohol or other suitable preservatives, absorption promoters to enhance absorption and/or bioavailability, and/or other solubilizing or dispersing agents such as those known in the art.
Exemplary compositions for parenteral administration include injectable solutions or suspensions which may contain, for example, suitable non-toxic, parenterally acceptable diluents or solvents, such as mannitol, 1,3-butanediol, water, Ringer's solution, an isotonic sodium chloride solution, or other suitable dispersing or wetting and suspending agents, including synthetic mono- or diglycerides, and fatty acids, including oleic acid.
Exemplary compositions for rectal administration include suppositories which may contain, for example, suitable non-irritating excipients, such as cocoa butter, synthetic glyceride esters or polyethylene glycols, which are solid at ordinary temperatures but liquefy and/or dissolve in the rectal cavity to release the drug.
The effective amount of a compound of the present invention may be determined by one of ordinary skill in the art. The specific dose level and frequency of dosage for any particular subject may vary and will depend upon a variety of factors, including the activity of the specific compound employed, the metabolic stability and length of action of that compound, the species, age, body weight, general health, sex and diet of the subject, the mode and time of administration, rate of excretion, drug combination, and severity of the particular condition. An exemplary effective amount of compounds of formula I may be within the dosage range of about 0.1 to about 100 mg/kg, preferably about 0.2 to about 50 mg/kg and more preferably about 0.5 to about 25 mg/kg (or from about 1 to about 2500 mg, preferably from about 5 to about 2000 mg) on a regimen in single or 2 to 4 divided daily doses.
Assay
Mitochondria were isolated from bovine hearts and purified through a Percoll gradient, sonicated to generate sub mitochondrial particles (SMP), centrifuged, and stored at −80° C. See Gasnier F. et al, “ Use of Percoll Gradients for Isolation of Human Placenta Mitochondria Suitable for Investigating Outer Membrane Proteins,” Anal. Biochem ., Vol 212(1) (1993) at pp. 173-178; and Matsuno-Yagi A et al, “ Studies on the Mechanism of Oxidative Phosphorylation: Effects of Specific F 0 Modifiers on Ligand - Induced Conformation Changes of F 1 ,” Proc. Nat'l Acad. Sci. USA , Vol. 82(22) (1985), at pp. 7550-7554.) ATP hydrolyase activity was determined using SMP and the well-characterized coupled enzyme system in which ATP hydrolysis and subsequent ADP generation is coupled through pyruvate kinase and lactate dehydrogenase to NAD+generation which was monitored by a decrease in absorbance at 340 nm (see Pullman, M. E. et al, “ Partial Resolution of the Enzymes Catalyzing Oxidative Phosphorylation,” J. Biol. Chem . Vol. 235 (1960), at pp. 3322-3329.) Similarly, compound effects on ATP synthase activity were determined using SMP in the well-characterized coupled enzyme assay in which ATP generation is coupled to NADPH synthesis through the hexokinase and glucose-6-phosphate dehydrogenase pathway (Cross & Kohlbrenner, “ The Mode of Inhibition of Oxidative Phosphorylation by Efrapeptin (A23871). Evidence for an Alternating Site Mechanism for ATP Synthesis,” J. Biol. Chem ., Vol. 253 (1978) at pp. 4865-4873.) NADPH increase was monitored spectrophotometrically by an increase in absorbance at 340 nm. Compounds were dissolved in 100% dimethyl sulfoxide and tested at increasing concentrations for enzyme inhibition. The concentration of compound causing 50% inhibition of the enzyme (IC 50 ) was calculated after the data was fitted using the Levenburg Marquardt algorithm and Microsoft Excel.
Compounds of formula (I), and more particularly, the compounds of Examples 1 through 494 hereof, were tested in this assay and found to have a measurable level of activity for inhibiting F 1 F 0 -ATP hydrolase. Each of the compounds of Examples 1-494 is a non-peptidic small organic compound with less than 1000 molecular weight, with preferred compounds having less than 750 molecular weight.
Abbreviations
The following abbreviations are employed in the Examples and elsewhere herein:
Ph=phenyl Bn=benzyl Me=methyl Et=ethyl MeOH=methanol EtOH=ethanol Pr=propyl Bu=butyl AcOH=acetic acid DBU=1,8-diazabicyclo[5,4,0]undec-7-ene DIP-Cl=B-chlorodiisopinocampheylborane DMF=N,N-dimethylformamide DPPA=Diphenylphosphoryl azide EDC═N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide EtOAc=ethyl acetate NaBH 4 =sodium borohydride NaHCO 3 =sodium bicarbonate KCNS=potassium isothiocyanate Pd/C=palladium on carbon PtO 2 =platinum oxide Ph 3 P=triphenylphosphine TEA=triethylamine or Et 3 N THF=tetrahydrofuran TFA=trifluoroacetic acid min=minute(s) h or hr=hour(s) L=liter mL=milliliter μL=microliter g=gram(s) mg=milligram(s) mol=mole(s) mmol=millimole(s) meq=milliequivalent rt=room temperature sat or sat'd=saturated aq.=aqueous TLC=thin layer chromatography LC/MS=high performance liquid chromatography/mass spectrometry MS or Mass Spec=mass spectrometry mp=melting point

Process of Preparation
Inventive compounds that are inhibitors of mitochondrial F 1 F 0 ATP hydrolase may be prepared by methods illustrated in the following Schemes I to IX. Starting materials are commercially available or can be readily prepared by one of ordinary skill in the art using known methods. For all of the schemes and compounds, the groups R 1 -R 4 are as described above for a compound of Formula I and X is halogen, unless otherwise indicated. The group “Z” as used in these schemes corresponds to the group NR 5 R 6 , as described for a compound of Formula I, unless indicated otherwise. Groups designated generally as “R” are selected from substituents as set forth in the above definitions.
Solvents, temperatures, pressures, and other reaction conditions may readily be selected by one of ordinary skill in the art. High Speed Analoging (HSA) may be employed in the preparation of compounds, for example, where the intermediates possess a carboxylic acid or amino group. For ease of reference, abbreviations listed above are used in these schemes.


N-Arylcyanoguanidines of formula (Ia) were prepared by coupling 1-aryl-2-heteroaryl ethylamines 1 with N-aryl-N′-cyanothiourea in the presence of N-dimethylaminopropyl-N′-ethylcarbodiimide in solvent such as DMF. Ethylamines 1 may be prepared as described below in Schemes VI and VIII.


Cyanoguanidines of formula (Ib) were prepared by reacting 1-Aryl-2-heteroaryl ethylamines 1 (Schemes VI-VIII) with diphenylcyanoimidate to give compound 2. Subsequent reaction of 2 with amine R 3 —NH 2 in a solvent such as acetonitrile at temperatures at around 80° C. gave cyanoguanidine (Ib). This synthetic scheme is advantageous for nucleophilic amines (R—NH 2 ), such as benzylamine.


1-Aryl-2-heteroaryl ethylamines 1 were used to prepare acylguanidines of formula (Ic) and ureidoguanidines of formula (Id). Reaction of ethylamines 1 with arylisothiocyanate in acetonitrile gave thiourea 3. Thiourea 3 was converted to guanidinie 4 by reaction with NH 3 in the presence of a metal reagent, such as HgO in solvent such as MeOH. Acyl guanidines (Ic) were prepared by two methods: (i) first reacting the corresponding acids (R 9 —CO 2 H) with CDI to produce intermediates, and then reacting the intermediates with guanidine 4, and (ii) reacting amines R′R″NH with CDI to produce mixed ureas, and then reacting the mixed ureas with guanidine 4. Ureidoguanidines of formula (Id) were prepared by first reacting guanidine 4 with CDI, and then reacting the intermediate with amine (R 10 R 11 NH).


Treatment of urea 5 (Y═C) with a base such as sodium hydride in DMF, followed by addition of arylisothiocyanate gave thiourea 6. Treatment of 6 with 1-aryl-2-heteroaryl ethylamine 1 in the presence of a metal salt such as HgCl 2 gave acylguanidines of Formula (Ie). The same procedure may be followed to produce sulfonylguanidines of Formula (Ie) [Y═S(═O)] starting with sulfonamides 5 in step 1.


Acylguanidines of formula (If) were prepared by first converting acyl chloride 7 to acylisothiocyanate 8 by reaction with an isothiocyanate such as potassium isothiocyanate. Treatment of 8 with 1-aryl-2-heteroaryl ethylamine 1 gave acylthiourea 9. Treatment of 9 with TEA and a metal salt such as HgCl 2 in acetonitrile gave compounds (If).


1-Aryl-2-heteroaryl ethylamines 1 (used in Schemes I-V) were prepared from aroylchlorides 10 and directly from acetophenones 11. Aroylchlorides 10 were reacted with methlymagnesium bromide in the presence of tributylphosphine in THF to give substituted acetophenone 11. Halogentation of acetophenones such as by bromination (Br 2 /CH 2 Cl 2 ), gave haloacetophenones 12. Displacement of the halogen in 12 with nucleophilic heteroaryls, such imidazole, benzimidazole, or triazole, in solvent, such as acetonitrile, gave compound 13. Reduction of ketone 13 with a reducing agent, such as sodium borohydride, in a solvent such as EtOH, gave substituted 1-aryl-2-heteroaryl ethanol 12. Alcohol 12 was converted to amine 1 by reaction with an azide such as DPPA and DBU, followed by reduction with reducing agents such as Ph 3 P and water in a solvent such as THF.


1-Aryl-2-heteroaryl ethanols 14 were also prepared by treating an arylaldehyde 15 under epoxidizing conditions, such as trimethylsulfonium iodide and KOH in acetonitrile to give epoxide 16. Reaction of the epoxide 16 with heteroaryls, such as imidazole, benzimidazole, triazole, in the presence of NaH in a solvent such as DMF produced 1-aryl-2-heteroaryl ethanol 14. The ethanol 14 can then be converted to 1-Aryl-2-heteroaryl ethylamines 1 by reaction with an azide as shown in Scheme VI.


1-Aryl-2-heteroaryl ethylamines 1


can also be prepared by reacting arylaldehydes 15 with LiHMDS in THF and then with TMSCl to produce compounds 17. Compounds 17 when reacted with 2-methylbenzimidazole, N-BuLi, and BF 3 OEt 2 gave ethylamines 1.


N-(Aryl)sulphonylguanidines can be prepared by treatment of arylsulphonyl chlorides 1 with ammonium hydroxide to produce arylsulphonamines 2, which yield thioureas 3 upon treatment with isothiocyanates and a base, such as sodium hydride. Reaction of these N-aryl-N′-arylsulphonylthioureas with a benzylic amine such as 4, in the presence of HgCl 2 and a base, such as DIPEA, yields N-(aryl)sulphonylguanidines 5.

The invention will now be further described by the following working examples, which are illustrative rather than limiting. All temperatures are in degrees Celsius (° C.) unless otherwise indicated.
EXAMPLE 1
N-(2,4-Dichlorophenyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine

A. 2,5-Bistrifluoromethyl-1-methylcarbonylbenzene.

To a stirred solution of 2,5-trifluoromethylbenzoyl chloride (10 g, 36 mmol) in THF (150 mL) at −20° C., was added tributylphosphine (10 mL, 40 mmol) over 5 min. After stirring for 20 min, a solution of methylmagnesium bromide (3M, 12 mL) in THF was added rapidly (1 min). After addition, the reaction mixture was allowed to stir for 30 min, 1N HCl solution (20 mL) was added, and the mixture was concentrated in vacuo. The residue was partitioned between ether and 1N HCl solution. The aqueous solution was extracted with ether, the combined organic layers were dried and concentrated, and the residue was purified by silica gel column chromatography (5% EtOAc in hexanes) to give 5.1 g (56%) of Compound A as an oil.
B. T-Bromomethylcarbonyl-2,5-bistrifluoromethylbenzene.
To a stirred solution of Compound A (5.1 g, 20 mmol) in CH 2 Cl 2 at rt was added a solution of Br (1.03 g) in CH 2 Cl 2 . The mixture was allowed to stir for 6 h and then washed with saturated NaHCO 3 . The organic layer was dried and concentrated to give Compound B as a yellow oil (6.5 g, 97%).
C. 2,5-Bistrifluoromethyl-1-(imidazol-1-yl)methylcarbonyl)benzene.
To a stirred solution of Compound B (6.5 g, 19.5 mmol) in CH 2 Cl 2 (100 mL) was added imidazole (3.32 g, 48.7 mmol), and the mixture was allowed to stir at rt for 18 h. The solvent was removed, and the residue was partitioned between EtOAc (200 mL) and water. The organic layer was washed with ammonium chloride solution, dried, and concentrated to give Compound C as a solid, which was directly used in next step without further purification.
D. 1-(2,5-Bistrifluoromethylphenyl)-2-(imidazol-1-yl)ethanol.
To a stirred solution of Compound C (4.2 g, 13.5 mmol) in EtOH at 0° C. was added NaBH 4 (260 mg, 6.8 mmol) in one portion. This was allowed to stir at 0° C. for 2 h. The solvent was removed, and the residue was partitioned between EtOAc and NaHCO 3 solution. The organic layer was separated, dried, and concentrated to give Compound D as a solid (4.1 g, 94%).
E. 1-(2,5-Bistrifluoromethylphenyl)-2-(imidazol-1-yl)ethylaamine.
To a stirred suspension of Compound D (4.0 g, 12.3 mmol) in toluene (40 mL) at 0° C., was added DPPA (2.9 mL, 13.6 mmol), followed by addition of DBU (2.2 mL, 14.8 mmol). The stirred reaction mixture was allowed to heat at 60° C. for 18 h. The mixture was allowed to cool and was then partitioned between EtOAc and water. The organic layer was washed with brine (3×50 mL), dried, concentrated, and re-dissolved in acetonitrile. Water (1.0 mL) was added to the solution, followed by Ph 3 P (4 g, 15.1 mmol), and the mixture was allowed to heat at reflux for 18 h. The solution was cooled and concentrated. The residue was partitioned between EtOAc and 10% HCl solution. The aqueous solution was extracted with EtOAc and basified (pH 12) with ION NaOH solution at 0° C. The aqueous solution was extracted with EtOAc, and combined extracts were dried (Na 2 SO 4 ) and concentrated to give Compound E as a solid.
F. N-(2,4-Dichlorophenyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine. To a stirred solution of Compound E (1.1 g, 3.4 mmol) in DMF at rt was added N-cyano-N′-(2,4-dichlorophenyl)thiourea (1.1 g, 4.1 mmol), followed by EDC (800 mg, 4.1 mmol). The mixture was allowed to stir at rt for 18 h and then partitioned between EtOAc and saturated ammonium chloride solution. The organic layer was separated and washed with saturated ammonium chloride solution (3×50 mL). The organic layer was dried, concentrated, and the residue was purified by silica gel column chromatography (EtOAc, MeOH, NR4OH; 95:5:0.1) to give Example 1 as a solid (350 mg). MS (ES): m/z 535 [M+H] + .
EXAMPLES 2-11
N-(aryl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidines









Compounds having the formula (Ig), wherein R 3 has the values listed in Table 1 were prepared by following the procedure described for Example 1, except in Step F, different ureas were used.







TABLE 1



Example #
R 3
Data









2









MS 535 [M + H] +

3









MS 535 [M + H] +

4









MS 559 [M + H] +

5









MS 498 [M + H] +

6









MS 514 [M + H] +

7









MS 500 [M + H] +

8









MS 514 [M + H] +

9









MS 500 [M + H] +

10









MS 500 [M + H] +

11









MS 466 [M + H] +






























EXAMPLE 12
N-(Diphenylmethyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine

A. N-[1-(2,5-Bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N′-cyano-phenylureanate. To a stirred solution of 1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)ethylamine (220 mg, 0.68 mmol) in acetonitrile (5 mL) at rt was added diphenyl cyanocarbonimidate (178 mg, 71 mmol). The reaction mixture was allowed to stir at rt for 18 h. The solvent was removed, and the residue was purified by silica gel column chromatography (EtOAc, MeOH; 9:1) to give 160 mg (55%) of Compound A.

B. N-(Diphenylmethyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine. To a stirred solution of Compound A (10 mg) in acetonitrile (2 mL) at rt was added diphenylmethylamine (20 mg). The reaction mixture was heated at reflux for 18 h. The mixture was then concentrated and the residue purified by silica gel column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give Example 12 (5 mg). MS (ES): m/z 556 [M+H] + .

EXAMPLES 13-76
N-Substituted-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidines









Compounds having the formula (Ih), wherein R 3 has the values listed in Table 2 were prepared by following the same or similar procedure described for Example 12, except in Step B, different amines were used.







TABLE 2



Example #
R 3
Data



13









MS 480 [M + H] +

14









MS 548 [M + H] +

14









MS 559 [M + H] +

15









MS 559 [M + H] +

16









MS 549 [M + H] +

17









MS 559 [M + H] +

18









MS 549 [M + H] +

19









MS 530 [M + H] +

20









MS 549 [M + H] +

21









MS 514 [M + H] +

22









MS 570 [M + H] +

23









MS 572 [M + H] +

24









MS 540 [M + H] +

25









MS 524 [M + H] +

26









MS 536 [M + H] +

27









MS 516 [M + H] +

28









MS 606 [M + H] +

29









MS 524 [M + H] +

30









MS 540 [M + H] +

31









MS 537 [M + H] +

32









MS 551 [M + H] +

33









MS 515 [M + H] +

34









MS 617 [M + H] +

35









MS 606 [M + H] +

36









MS 564 [M + H] +

37









MS 544 [M + H] +

38









MS 639 [M + H] +

39









MS 563 [M + H] +

40









MS 570 [M + H] +

41









MS 545 [M + H] +

42









MS 506 [M + H] +

43









MS 524 [M + H] +

44









MS 559 [M + H] +

45









MS 508 [M + H] +

46









MS 486 [M + H] +

47









MS 500 [M + H] +

48









MS 549 [M + H] +

49









MS 528 [M + H] +

50









MS 533 [M + H] +

51









MS 501 [M + H] +

52









MS 517 [M + H] +

53









MS 554 [M + H] +

54









MS 706 [M + H] +

55









MS 506 [M + H] +

56









MS 554 [M + H] +

57









MS 520 [M + H] +

58









MS 524 [M + H] +

59









MS 494 [M + H] +

60









MS 554 [M + H] +

61









MS 587 [M + H] +

62









MS 582 [M + H] +

63









MS 542 [M + H] +

64









MS 549 [M + H] +

65









MS 484 [M + H] +

66









MS 616 [M + H] +

67









MS 522 [M + H] +

68









MS 584 [M + H] +

69









MS 570 [M + H] +

70









MS 538 [M + H] +

71









MS 570 [M + H] +

72









MS 524 [M + H] +

73









MS 510 [M + H] +

74









MS 510 [M + H] +

75









MS 652 [M + H] +

76









MS 510 [M + H] +

















































































EXAMPLES 77-81
N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidines









The compounds having the formula (Ii), wherein —NR 2 R 3 taken together have the values listed in Table 3, were prepared by following the procedure described above for Example 12, except different amines were used in Step B.







TABLE 3



Example #
—NR 2 R 3
Data



77









MS 494 [M + H] +

78









MS 570 [M + H] +

79









MS 563 [M + H] +

80









MS 549 [M + H] +

81









MS 488 [M + H] +





















EXAMPLE 82
N-(2,4-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine









The general procedure described in Example 1 (Steps C-F) was followed to synthesize Example 82; however, in Step C, trichloroacetophenone was used instead of 1-bromomethylcarbonyl-2,5-bistrifluoromethylbenzene to produce the intermediate 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethylamine as a white solid, and then this intermediate was used in step F instead of 1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)ethylamine, to provide Example 82 as a solid. MS (ES): m/z 468 [M+H] + .
EXAMPLES 83-104









Compounds having the formula (Ij), wherein R 3 has the values listed in Table 4, were prepared by following the procedure described above in Example 82, except different cyanothioureas were used in Step F.







TABLE 4



Example #
R 3
Data









83









MS 468 [M + H] +

84









MS 468 [M + H] +

85









MS 468 [M + H] +

86









MS 433 [M + H] +

87









MS 433 [M + H] +

88









MS 433 [M + H] +

89









MS 468 [M + H] +

90









MS 468 [M + H] +

91









MS 505 [M + H] +

92









MS 427 [M + H] +

93









MS 447 [M + H] +

94









MS 459 [M + H] +

95









MS 413 [M + H] +

96









MS 417 [M + H] +

97









MS 441 [M + H] +

98









MS 467 [M + H] +

99









MS 447 [M + H] +

100









MS 449 [M + H] +

101









MS 467 [M + H] +

102









MS 467 [M + H] +

103









MS 483 [M + H] +

104









MS 492 [M + H] +










































EXAMPLE 105
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-[(3-phenyl)propyl]-N″-cyanoguanidine









The procedure described for Example 12 was followed, except 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethylamine was used in Step A to produce the intermediate N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(3-phenylpropyl)-N″-cyanoguanidine, and then that intermediate was used in Step B with 3-phenylpropylamine (instead of diphenylmethylamine) to produce Example 105.
EXAMPLES 106-128









Compounds having formula (Ij), wherein R 3 has the values listed in Table 5, were prepared by following the procedure described above for Example 105, except using different amines in Step B.







TABLE 5



Example #
R 3
Data



105









MS 441 [M + H] +

106
n-Bu—
MS 379 [M + H] +

107
HO(CH 2 ) 3 —
MS 381 [M + H] +

108
EtOEt—
MS 395 [M + H] +

109
HO(CH 2 ) 4 —
MS 395 [M + H] +

110









MS 381 [M + H] +

111









MS 496 [M + H] +

112









MS 461 [M + H] +

113









MS 473 [M + H] +

114









MS 551 [M + H] +

115









MS 414 [M + H] +

116









MS 439 [M + H] +

117









MS 459 [M + H] +

118









MS 471 [M + H] +

119









MS 520 [M + H] +

120









MS 470 [M + H] +

121









MS 484 [M + H] +

122









MS 447 [M + H] +

123









MS 465 [M + H] +

124









MS 489 [M + H] +

125









MS 427 [M + H] +

126









MS 487 [M + H] +

127









MS 517 [M + H] +

128









MS 485 [M + H] +








































EXAMPLE 129
(2,5-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine









Steps B to E of Example 1 were followed, starting with 2,5-dichlorophenylmethyl-carbonylbenzene in Step B, to produce after Step E the intermediate 1-(2,5-Dichlorophenyl)-2-(imidazol-1-yl)ethylamine; and then this amine was used as Compound E in Step F of Example 1 to obtain the titled compound as a solid. MS (ES): m/z 467 [M+H] + .
EXAMPLES 130-135









Compounds having formula (Ik), wherein R 3 has the values listed in Table 6, were prepared by following the procedure as described above for Example 129, except in Step F, different N-aryl-N′-cyanothioureas were used instead of N-cyano-N′-(2,4-dichlorophenyl)thiourea.







TABLE 6



Example #
R 3
Data



130









MS 492 [M + H] +

131









MS 447 [M + H] +

132









MS 468 [M + H] +

133









MS 468 [M + H] +

134









MS 427 [M + H] +

135









MS 447 [M + H] +






















EXAMPLE 136
N-(2,5-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine









The procedure of Example 1 was followed, except in Step B, 2-chlorophenylmethylketone was used as Compound A (instead of 2,5-bistrifluoromethyl-1-methylcarbonylbenzene), to produce after Step E 1-(2-Chlorophenyl)-2-(imidazol-1Interleukin-1 receptor antagonists); solid. MS (ES): m/z 433 [M+H] + .
EXAMPLE 137-147









Compounds having the formula (II), wherein R 3 has the values listed in Table 7 were prepared by following the procedure as described for Example 136, except different N-aryl-N′-cyanothioureas were used in Step F.







TABLE 7



Example #
R 3
Data



137









MS 456 [M + H] +

138









MS 413 [M + H] +

139









MS 404 [M + H] +

140









MS 470 [M + H] +

141









MS 396 [M + H] +

142









MS 413 [M + H] +

143









MS 457 [M + H] +

144









MS 433 [M + H] +

145









MS 433 [M + H] +

146









MS 399 [M + H] +

147









MS 392 [M + H] +



























EXAMPLE 148
N-(4-Chlorophenyl)-N′-[1-(2,3-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine









The procedure of Example 1 was followed, except 2,3-Dichlorophenylmethylketone was used in Step B instead of 2,5-bistrifluoromethyl-1-methylcarbonylbenzene, to produce after Step E 1-(2,3-Dichlorophenyl)-2-(imidazol-1-yl)ethylamine, and then step F was followed with this ethylamine to obtain Example 148 as a solid. MS (ES): m/z 433 [M+H] + .
EXAMPLES 149-154









Compounds having formula (Im), wherein R 3 has the values listed in Table 8, were prepared by following the procedure described for Example 148, except different N-aryl-N′-cyanothioureas were used in Step F.







TABLE 8



Example #
R 3
Data



149









MS 427 [M + H] +

150









MS 431 [M + H] +

151









MS 433 [M + H] +

152









MS 433 [M + H] +

153









MS 447 [M + H] +

154









MS 468 [M + H] +






















EXAMPLE 155
N-(2,4-Dichlorophenyl)-N′-[1-(2,4-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine









The procedure of Example 1 was followed, except 2,4-bistrifluoromethyl-phenylmethylketone was used as Compound A in Step B to produce 1-(2,4-Bistrifluoromethylphenyl)-2-(imidazol-1-yl)ethylamine (after Step E), and then Step F was followed with this ethylamine to obtain Example 155 as a solid. MS (ES): m/z 535 [M+H] + .
EXAMPLES 156-171









Compounds having the formula (In) were prepared wherein R 3 has the values listed in Table 9, following the procedure as described for Example 155, except different N-aryl-N′-cyanothioureas were used in Step F.







TABLE 9



Example #
R 3
Data



156









MS 500 [M + H] +

157









MS 500 [M + H] +

158









MS 500 [M + H] +

159









MS 535 [M + H] +

160









MS 535 [M + H] +

161









MS 535 [M + H] +

162









MS 535 [M + H] +

163









MS 558 [M + H] +

164









MS 514 [M + H] +

165









MS 506 [M + H] +

166









MS 498 [M + H] +

167









MS 494 [M + H] +

168









MS 514 [M + H] +

169









MS 559 [M + H] +

170









MS 472 [M + H] +

171









MS 528 [M + H] +
































EXAMPLE 172
N-(2,4-Dichlorophenyl)-N′-[1-(2,4-bistrifluoromethylphenyl)-2-[1-(1,2,4-triazolyl)]-ethyl]-N″-cyanoguanidine









Example 172 was synthesized following the procedure described for Example 155, except triazole was used instead of imidazole (i.e., as per Example 1, Step C), to produce 1-(2,4-Bistrifluoromethylphenyt)-2-[1-(1,2,4-triazolyl)]ethylamine, and this ethylamine was used in the last step to make the titled compound as a solid. MS (ES): m/z 536 [M+H] + .
EXAMPLES 173-175









Compounds having the formula (Io), wherein R 3 has the values listed in Table 10, were prepared by following the procedure described for Example 172, except different N-aryl-N′-cyanothioureas were used in the last step.







TABLE 10



Example #
R 3
Data



173









MS 560 [M + H] +

174









MS 559 [M + H] +

175









MS 507 [M + H] +



















EXAMPLE 176
N-(3,4-Dichlorophenyl)-N′-[1-(2,4-bistrifluoromethylphenyl)-2-[benzimidazol-1-yl)]-ethyl]-N″-cyanoguanidine









The procedure described for Example 172 was followed using benzimidazole instead of triazole to produce 1-(2,4-Bistrifluoromethylphenyl)-2-(benzimidazol-1-yl)ethylamine, and then this ethylamine was used in the last step to make Example 176. MS (ES): m/z 585 [M+H] + .
EXAMPLE 177
N-[1-(2,4-bistrifluoromethylphenyl)-[1-benzimidazolyl)]-ethyl]-N′-(indan-7-yl)-N″-cyanoguanidine









Example 177 was prepared in the same manner as for Example 176, except N-(indan-7-yl)-N′-cyanothiourea was used in the last step. MS (ES): m/z 556 [M+H] + .
EXAMPLES 178-180
N-(Disubstitutedphenyl)-N′-[1-(2,3-dichlorophenyl)-2-[1-(1,2,4-triazol-1-yl)]-ethyl]-N″-cyanoguanidines









Compounds having the formula (Ip), wherein R 3 has the values listed in Table 11, were prepared by using the procedure described for Example 148 with triazole instead of imidazole to produce 1-(2,3-Dichlorophenyl)-2-[1-(1,2,4-triazolyl)]ethylaamine, and then this ethylamine was used in the last step with different N-aryl-N′-cyanothioureas to obtain the desired compound.







TABLE 11



Example #
R 3
Data



178









MS 469 [M + H] +

179









MS 448 [M + H] +

180









MS 469 [M + H] +



















EXAMPLES 181-189
N-(Substitutedphenyl)-N′-[1-(2,4-dichlorophenyl)-2-(benzimidazol-1-yl)-ethyl]-N″-cyanoguanidines









Compounds of formula (Iq), wherein R 3 has the values listed in Table 12, were prepared by first following the process described in Example 82, using benzimidazole instead of imidazole, to obtain 1-(2,4-Dichlorophenyl)-2-(benzimidazol-1-yl)ethylamine (as a white solid). Then this ethylamine was used in the last step with different cyanothioureas (e.g., Example 1, Step F), to obtain the desired compound.







TABLE 12



Example #
R 3
Data



181









MS 518 [M + H] +

182









MS 481 [M + H] +

183









MS 477 [M + H] +

184









MS 489 [M + H] +

185









MS 497 [M + H] +

186









MS 497 [M + H] +

187









MS 541 [M + H] +

188









MS 542 [M + H] +

189









MS 555 [M + H] +

























EXAMPLE 190
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-diphenylmethyl-N″-(4-carbonylguanidine Hydrochloride

A. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)carbonyl thiourea. To a stirred solution of 4-chlorobenzoyl chloride (175 mg, 1.0 mmol) in anhydrous acetone was added KNCS (100 mg, 1.0 mmol) at rt. The reaction mixture was heated at reflux for 40 min, then cooled to rt, and 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethylamine (250 mg, 1.0 mmol) was added. The reaction was allowed to proceed for 2 h. The precipitate was filtered and the filtrate concentrated to give Compound A, which was used in the next step without further purification.

B. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-diphenylmethyl-N″-(4-chlorophenyl)carbonylguanidine Hydrochloride. To a stirred solution of Compound A in CH 2 Cl 2 was added diphenylmnethylamine (150 mg), followed by TEA and mercuric chloride (270 mg). The mixture was allowed to stir at rt for 3 h. The reaction mixture was diluted with EtOAc. The precipitate was filtered, the filtrate concentrated, and the residue purified by column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give, after conversion to HCl salt with HCl solution in ether, the titled compound a solid. MS (ES): m/z 602 [M+H] + .

EXAMPLE 191
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-phenyl-N″-phenylcarbonylguanidine

A. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-phenyl)carbonyl thiourea. Compound A was prepared by following the procedure of Example 190, Step A, except benzoyl chloride was used instead of 4-chlorobenzoyl chloride.

B. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]—N′-phenyl-N″-phenylcarbonylguanidine. Step B of Example 190 was followed using Compound A, above, and aniline (instead of diphenylmethylamine) to obtain Example 191. MS (ES): m/z 478 [M+H] + .

EXAMPLES 192-227
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-substituted-N″-phenylcarbonylguanidines









Compounds having the formula (If) wherein R 3 has the values listed in Table 13, were prepared by following the process described in Example 191 except using different arylamines in step B.







TABLE 13



Example #
R 3
Data



192









MS 512 [M + H] +

193









MS 492 [M + H] +

194









MS 512 [M + H] +

195









MS 526 [M + H] +

196









MS 547 [M + H] +

197









MS 503 [M + H] +

198









MS 547 [M + H] +

199









MS 536 [M + H] +

200









MS 546 [M + H] +

201









MS 557 [M + H] +

202









MS 526 [M + H] +

203









MS 520 [M + H] +

204









MS 560 [M + H] +

205









MS 571 [M + H] +

206









MS 554 [M + H] +

207









MS 562 [M + H] +

208









MS 520 [M + H] +

209









MS 556 [M + H] +

210









MS 557 [M + H] +

211









MS 570 [M + H] +

212









MS 644 [M + H] +

213









MS 528 [M + H] +

214









MS 536 [M + H] +

215









MS 506 [M + H] +

216









MS 580 [M + H] +

217









MS 562 [M + H] +

218









MS 528 [M + H] +

219









MS 524 [M + H] +

220









MS 627 [M + H] +

221









MS 517 [M + H] +

222









MS 518 [M + H] +

223









MS 557 [M + H] +

224









MS 522 [M + H] +

225









MS 581 [M + H] +

226









MS 520 [M + H] +

227









MS 569 [M + H] +




















































EXAMPLES 228-230









Compounds having the formula (Is) wherein R 3 has the values listed in Table 14, were prepared by following the process described in Example 190 except using different arylamines in step B.







TABLE 14



Example #
R 3
Data



228









MS 547 [M + H] +

229









MS 591 [M + H] +

230









MS 580 [M + H] +



















EXAMPLE 231
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-cyanophenyl)carbonylguanidine hydrochloride

A. N-(4-Chlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]thiourea. To a stirred solution of 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethylaruine (255 mg, 1.0 mmol) in acetonitrile was added 4-chlorophenylisothiocyanate (170 mg, 1.0 mmol). The reaction mixture was allowed to stir at rt for 18 h. The solvent was evaporated to give Compound A as a solid, which was used directly in the next step.

B. N-(4-Chlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]guanidine. Compound A was mixed with a solution of ammonium hydroxide (10 mL, 7M) in MeOH. To this stirred solution was added mercuric oxide (red, 1.5 mmol). The suspension was allowed to stir at rt for 18 h. The mixture was filtered, and the filtrate concentrated and partitioned between aqueous NaOH solution and EtOAc. The organic layer was separated, dried, and concentrated to give Compound B as an oil.

C. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-cyanophenyl)carbonylguanidine hydrochloride. To a stirred solution of 4-cyanobenzoic acid (43 mg, 0.3 mmol) in 5 mL of anhydrous THF was added carbonyl diimidazole (48 mg, 0.3 mmol). This was allowed to stir at rt for 2 h. A solution of Compound B (120 mg, 0.3 mmol) in anhydrous THF (1 mL) was added, and the mixture was allowed to stir at rt for 18 h. The solvent was removed, and the residue partitioned between EtOAc and NaHCO 3 solution. The organic layer was separated, dried, and concentrated. The residue was purified by silica gel column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give an oil, which was dissolved in MeOH. HCl solution in ether was added, and the solvent was removed to give the title compound as a solid. MS (ES): m/z 537 [M+H] + .

EXAMPLES 232-271
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-carbonylguanidines









Compounds having the formula (It) wherein R 9 has the values listed in Table 15, were prepared by following the process described for Example 231 except instead of 4-cyanobenzoic acid, different carboxyclic acids were used in Step C.







TABLE 15



Example #
R 9
Data



232









MS 478 [M + H] +

233









MS 518 [M + H] +

234









MS 537 [M + H] +

235









MS 548 [M + H] +

236









MS 677 [M + H] +

237









MS 557 [M + H] +

238









MS 526 [M + H] +

239









MS 530 [M + H] +

240









MS 592 [M + H] +

241









MS 526 [M + H] +

242









MS 513 [M + H] +

243









MS 581 [M + H] +

244









MS 547 [M + H] +

245









MS 570 [M + H] +

246









MS 530 [M + H] +

247









MS 565 [M + H] +

248









MS 502 [M + H] +

249









MS 502 [M + H] +

250









MS 518 [M + H] +

252









MS 580 [M + H] +

252









MS 565 [M + H] +

253









MS 590 [M + H] +

254









MS 563 [M + H] +

255









MS 555 [M + H] +

256









MS 569 [M + H] +

257









MS 537 [M + H] +

258









MS 537 [M + H] +

259









MS 532 [M + H] +

260









MS 496 [M + H] +

261









MS 464 [M + H] +

262









MS 518 [M + H] +

263









MS 494 [M + H] +

264









MS 493 [M + H] +

265









MS 504 [M + H] +

266









MS 490 [M + H] +

267









MS 476 [M + H] +

268









MS 542 [M + H] +

269









MS 542 [M + H] +

270









MS 555 [M + H] +

271









MS 556 [M + H] +
























































EXAMPLE 272
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-tert-butylcyclohexyl)-N″-(3-cyanophenylcarbonyl)guanidine









Example 272 was prepared by following the procedure of Example 190, except 3-cyanobenzoyl chloride was used instead of 4-chlorobenzoyl chloride in Step A to obtain N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(3-cyanophenyl)carbonyl thiourea, and tert-butylcyclohexylamine was used in Step B instead of diphenylmethylamine to obtain the titled compound. MS (ES): m/z 565 [M+H] + .
EXAMPLES 273-301
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(Substituted)-N″-(3-cyanophenylcarbonyl)guanidines









Compounds having the formula (Iu) wherein R 3 has the values listed in Table 16, were prepared by following the process described for Example 272 except different amines were used in Step B.







TABLE 16



Example #
R 3
Data



273









MS 571 [M + H] +

274









MS 531 [M + H] +

275









MS 561 [M + H] +

276









MS 498 [M + H] +

277









MS 538 [M + H] +

278









MS 534 [M + H] +

279









MS 524 [M + H] +

280









MS 579 [M + H] +

281









MS 508 [M + H] +

282









MS 562 [M + H] +

283









MS 528 [M + H] +

284









MS 549 [M + H] +

285









MS 596 [M + H] +

286









MS 571 [M + H] +

287









MS 544 [M + H] +

288









MS 559 [M + H] +

289









MS 587 [M + H] +

290









MS 560 [M + H] +

291









MS 585 [M + H] +

292









MS 550 [M + H] +

293









MS 565 [M + H] +

294









MS 677 [M + H] +

295









MS 553 [M + H] +

296









MS 522 [M + H] +

297









MS 574 [M + H] +

298









MS 550 [M + H] +

299









MS 591 [M + H] +

300









MS 550 [M + H] +

301









MS 570 [M + H] +













































EXAMPLE 302
N-(4-Chlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(2-methylimidazol-1-yl-yl)-ethyl]-N″-(3-cyanophenylcarbonyl) guanidine









The procedure described in Example 1, Steps A-E, was followed except in Step C, trichloroacetophenone was used for Compound B and 2-methylimidazole was used instead of imidazole to prepare (after Step E), 1-(2,4-dichlorophenyl)-2-(2-methylimidazol-1-yl-yl)ethylamine. Then this ethylamine and 3-cyanobenzoic acid were used in the procedure described in Example 231, Steps A to B, to prepare the titled compound as a solid. MS (ES): mnz 551 [M+H] + .
EXAMPLES 303-306









Compounds having the formula (Iv) wherein Z (or NR 5 R 6 in Formula I) has the values listed in Table 17 were prepared by following the procedure described for Example 302, except instead of methylimidazole, different heteroaryls or substituted heteroaryls were used.







TABLE 17



Example #
Z
Data



303









MS 551 [M + H] +

304









MS 587 [M + H] +

305









MS 622 [M + H] +

306









MS 538 [M + H] +




















EXAMPLE 307
N-(2,4-Dichlorophenyl)-N′-[1-(2-chloro-5-trifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine

A. 2-Chloro-5-trifluoromethylphenylethylene oxide. To a stirred solution of 2-chloro-5-trifluoromethylbenzalhyde (2.05 g, 10 mmol) in acetonitrile (50 mL) at rt was added trimethylsulfonium iodide (2.04 g, 10 mmol) and 0.5 mL of water, followed by powdered KOH (1.05 g). The suspension was heated on an oil-bath at 70° C. under argon for 6 h. The reaction mixture was cooled, ether was added, and the suspension was filtered. The filtrate was concentrated and the residue purified by flash column chromatography (hexanes/EtOAc, 9:1) to give Compound A as a yellow oil (1.8 g).

B. 1-(2-Chloro-5-trifuoromethylphenyl)-2-(imidazol-1-yl)ethanol. To a stirred solution of Compound A (600 mg, 2.7 mmol) and imidazole (550 mg, 8 mmol) in DMF at rt was added sodium hydride (200 mg, 8 mmol) in one portion. This was allowed to stir at rt for 2 h. The reaction mixture was partitioned between EtOAc and water. The organic layer was separated, washed with saturated ammonium chloride solution, dried, and concentrated to give Compound B as an oil, which was used directly in the next step.

C. N-(2,4-Dichlorophenyl)-N′-[1-(2-chloro-5-trifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine. Step E of Example 1 was followed with t-(2-chloro-5-trifuoromethylphenyl)-2-(imidazol-1-yl)ethanol to prepare 1-(2-Chloro-5-trifuoromethylphenyl)-2-(imidazol-1-yl)ethylamine, and then this ethylamine was used in Step F of Example 1 to produce Example 307. MS (ES): m/z 501 [M+H] + .

EXAMPLE 308
N-(2,4-Dichlorophenyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(benzimidazol-1-yl)-ethyl]-N″-cyanoguanidine









The procedure described for Example 307 was followed except in Step A, 2,5-bistrifluoromethylbenzadehyde was used to give 2,5-Bistrifluoromethylphenylethylene oxide. Step B gave bistrifuoromethylphenyl)-2-(benzimidazol-1-yl)ethanol, which was used in Step C to give 1-(2-Chloro-5-trifuoromethylphenyl)-2-(benzimidazol-1-yl)ethylamine and Example 308. MS (ES): m/z 585 [M+H] + .
EXAMPLE 309
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-trifluoromethylphenyl)-N″-(pyridin-3-ylamino)carbonylguanidine dihydrochloride

A. N-(4-Trifluoromethylphenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]thiourea. Compound A was prepared by following the procedure of Example 231, except 4-trifluoromethylphenylisothiocyanate was used.

B. N-(4-Chlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(irmdazol-1-yl)-ethyl] guanidine. Compound B was prepared by following the procedure of Example 231, Step B, except the thiourea used was Compound A.

C. N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-trifluoromethylphenyl)-N″-(pyridin-3-ylamino)carbonylguanidine dihydrochloride. To a stirred solution of 3-aminopyridine (200 mg, 2.2 mmol) in 5 mL of anhydrous acetonitrile was added carbonyl diimidazole (330 mg, 2.2 mmol). This was allowed to stir at rt for 2 h. A solution of Compound B (700 mg, 1.5 mmol) in anhydrous acetonitrile (1 mL) was added. This was allowed to stir at rt for 18 h. The solvent was removed and the residue partitioned between EtOAc and NaHCO 3 solution. The organic layer was separated, dried, and concentrated; the residue was purified by silica gel column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give an oil. The oil was dissolved in MeOH, and to this was added HCT solution in ether. The solvent was removed to give the titled compound as a solid. MS (ES): nmz 562 [M+H] + .

EXAMPLES 310-313









Coumpounds having the formula (Iw) wherein R 9 has the values listed in Table 18 were prepared by following the procedure described for Example 309, except in Step C, different amines were used instead of 3-aminopyridine.







TABLE 18



Example #
R 9
Data



310









MS 555 [M + H] +

311









MS 568 [M + H] +

312









MS 601 [M + H] +

313









MS 590 [M + H] +




















EXAMPLE 314
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-chlorophenylmethylamino)carbonylguanidine [Hydrochloride?]









To a stirred solution of N-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)guanidine of Example 231 (step B) in THF was added carbonyldimidazole. The reaction mixture was allowed to stir at rt for 2 h, then 4-chlorophenylmethylamine was added. This was allowed to stir at rt for 18 h. The solvent was removed and the residue partitioned between EtOAc and ammonium chloride solution. The organic layer was separated, dried, concentrated, and purified by silica gel column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give an oil. The oil was dissolved in MEOH, and to this was added HCl solution in ether. The solvent was removed to give the title compound as a solid. MS (ES): r/z 576 [M+H] + .
EXAMPLES 315-386









Compounds having the formula (1×) wherein R 9 has the values listed in Table 19 were prepared by following the procedure described for Example 314 except instead of 4-chlorophenylmethylamine, different amines were used.







TABLE 19



Example #
R 9
Data



315









MS 517 [M + H] +

316









MS 575 [M + H] +

317









MS 641 [M + H] +

318









MS 547 [M + H] +

319









MS 639 [M + H] +

320









MS 628 [M + H] +

321









MS 624 [M + H] +

322









MS 573 [M + H] +

323









MS 547 [M + H] +

324









MS 533 [M + H] +

325









MS 609 [M + H] +

326









MS 628 [M + H] +

327









MS 627 [M + H] +

328









MS 567 [M + H] +

329









MS 569 [M + H] +

330









MS 631 [M + H] +

331









MS 591 [M + H] +

332









MS 613 [M + H] +

333









MS 640 [M + H] +

334









MS 605 [M + H] +

335









MS 575 [M + H] +

336









MS 569 [M + H] +

337









MS 549 [M + H] +

338









MS 589 [M + H] +

339









MS 611 [M + H] +

340









MS 618 [M + H] +

341









MS 612 [M + H] +

342









MS 569 [M + H] +

343









MS 593 [M + H] +

344









MS 623 [M + H] +

345









MS 705 [M + H] +

346









MS 585 [M + H] +

347









MS 584 [M + H] +

348









MS 519 [M + H] +

349









MS 535 [M + H] +

350









MS 559 [M + H] +

351









MS 555 [M + H] +

352









MS 665 [M + H] +

353









MS 691 [M + H] +

354









MS 577 [M + H] +

355









MS 559 [M + H] +

356









MS 547 [M + H] +

357









MS 648 [M + H] +

358









MS 541 [M + H] +

359









MS 547 [M + H] +

360









MS 567 [M + H] +

361









MS 598 [M + H] +

362









MS 585 [M + H] +

363









MS 585 [M + H] +

364









MS 545 [M + H] +

365









MS 651 [M + H] +

366









MS 556 [M + H] +

367









MS 601 [M + H] +

368









MS 624 [M + H] +

369









MS 678 [M + H] +

370









MS 551 [M + H] +

371









MS 625 [M + H] +

372









MS 592 [M + H] +

373









MS 565 [M + H] +

374









MS 535 [M + H] +

375









MS 562 [M + H] +

376









MS 581 [M + H] +

377









MS 545 [M + H] +

378









MS 576 [M + H] +

379









MS 556 [M + H] +

380









MS 556 [M + H] +

381









MS 559 [M + H] +

382









MS 578 [M + H] +

383









MS 556 [M + H] +

384









MS 523 [M + H] +

385









MS 562 [M + H] +

386









MS 550 [M + H] +
























































































EXAMPLES 387 AND 388
(S)-N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-cyanophenyl)carbonylguanidine Hydrochloride (Ex. 387) and (R)-N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-cyanophenyl)carbonylguanidine Hydrochloride (Ex. 388)

A. (R) and (S)-2-Chloro-1-(2,4-dichlorophenyl)ethanol. To a stirred solution of DIP-Cl (15 g, 46.8 mmol) in THF (100 mL) at −78° C. under argon atmosphere was added chloroacetophenone (5.5 g, 24.6 mmol) in THF (10 mL) via an additional funnel. This was allowed to stir at −78° C. and slowly warmed to rt for 18 h. To the resulting mixture was added MeOH (10 mL) followed by saturated NaHCO 3 solution. The mixture was concentrated and the residue partitioned between EtOAc and saturated NaHCO 3 solution. The organic layer was separated, dried, and concentrated, and the residue was purified by silica gel column chromatography (8:1, hexanes/EtOAc) to give Compound A as an oil (5 g, 90%). The R-enantiomer was made by starting with (−) DIP-Cl (to give Ex. 387), and the S-enantiomer with (+) DIP-Cl (Ex. 388).

B. (R) and (S)-1-(2,4-Dichlorophenyl)-(imidazol-1-yl)ethanol. To a stirred solution of Compound A (5.0 g, 22.2 mmol) in DMF was added imidazole (2.0 g, 29.4 mmol). This was cooled to 0° C., and sodium hydride (1.0 g, 42 mmol) was added. The resultant mnixture was allowed to stir at 0° C. for 2 h and at rt for 18 h. The reaction was quenched with water (10 mL), and resultant mixture was partitioned between water and EtOAc. The organic layer was separated, dried, concentrated, and the residue was purified by column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give Compound B as a solid (4.0 g, 70%).

C. (S) and (R)-1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)ethylamine. Step E of Example 1 was followed to obtain Compound C except 1-(2,4-dichlorophenyl)-(imidazol-1-yl)ethanol was used.

D. (S) and (R)-N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-cyanophenyl)carbonylguanidine hydrochloride. Steps A-C of Example 231 were followed to obtain the Compound of Examples 387 and 388 as a white solid, except in Step A, 1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)ethylamine was used and in Step C 1-3 -cyanobenzoic acid. The S-enantiomer was made by starting with (−) DIP-Cl, and the R-enantiomer with (+) DIP-Cl. MS (ES): m/z 537 [M+H] + .

EXAMPLE 389
N-(Diphenylmethyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl) ethyl]-N″-(thiazol-2-yl)guanidine hydrochloride









To a stirred solution of 2-aminothiazole (100 mg) in acetonitrile (3 mL) was added thiocarbonyl dimidazole (180 mg, 1.0 mmol). The mixture was allowed to stir at rt for 2 h and at 65° C. for 5 h, and then 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethylamine (250 mg, 1.0 mmol) was added. This was allowed to stir for 5 h at 65° C. The mixture was cooled to rt, and diphenylmethylamine was added, followed by TEA and mercuric chloride. The suspension was allowed to stir at rt for 3 h and filtered. The filtrate was concentrated and the residue purified by column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give after conversion to HCT salt, the title compound as a yellow solid (100 mg). MS (ES): m/z 547 [M+H] + .
EXAMPLE 390
N-(4-chlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl]-N″-(pyridin-4-ylcarbonyl)guanidine hydrochloride









To a stirred solution of isoniconamide (150 mg, 1.2 mmol) in DMF (3 mL) at rt was added sodium hydride (60% in oil, 120 mg, 3.0 mmol). After the mixture was allowed to stir at rt for 2 h, 4-chlorophenylthioisocyanate was added, and then it was allowed to stir for an additional 2 h. 1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)ethylamine (200 mg, 0.78 mmol) was added, followed by mercuric chloride (300 mg). The suspension was allowed to stir at rt for 3 h, diluted with EtOAc, and filtered. The filtrate was concentrated, and the residue was purified by column chromatography (EtOAc, MeOH, NH 4 OH; 90:10:0.1) to give, after conversion to HCl salt, the title compound as a yellow solid (190 mg). MS (ES): m/z 513 [M+H] + .
EXAMPLES 391-395
N-(Substituted phenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl]-N″-(aminocarbonyl)guanidines









The compounds having the formula (Iy) wherein R 3 has the values listed in Table 20 were prepared by following the procedure described for Example 390 except urea was used in place of isoniconamide, and different arylisothiocyanates were used in place of 4-chlorophenylthoisocyanate (e.g., 2-bromo-4-chlorophenylisothiocyanate was used for Example 391).







TABLE 20



Example #
R 3
Data



391









MS 529 [M + H] +

392









MS 571 [M + H] +

393









MS 485 [M + H] +

394









MS 519 [M + H] +

395









MS 451 [M + H] +





















EXAMPLE 396
N-(2,4-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl]-N″-(4-nitrophenylsulfonyl)guanidine









The titled compound was prepared by following the procedure of Example 390 except 4-nitrophenylsulfonamide was used instead of isoniconamide. MS (ES): m/z 593 [M+H] + .
EXAMPLE 397
N-(2,4-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl]-N″-(dimethylaminocarbonyl)guanidine









The titled compound was prepared by following the procedure of Example 390 except N,N-dimethylurea was used instead of isoniconamide and 2,4-dichlorophenyliso-thiocyanate was used instead of 4-chlorophenylthioisocyanate. MS (ES): m/z 513 [M+H] + .
EXAMPLE 398
N-(2,4-Dichlorophneyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl]-N″-(n-butylaminocarbonyl)guanidine

A. N-(2,4-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl] guanidine. Compound A was prepared by following Example 231, Step A, except 2,4-dichlorophenylisothiocyanate was used.

B . N-(2,4-Dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl] N″-(n-butylaminocarb The title compound was prepared by following the procedure of Example 314, except N-(2,4-dichlorophenyl)-N′-[1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethyl] guanidine was used as the guanidine source and n-butylamine was used in place of 4-chlorophenylmethylamine. MS (ES): m/z 541 [M+H] + .
EXAMPLES 399-400









Compounds having the formula (Iz) wherein R 9 has the values listed in Table 21 were prepared by following the procedure of Example 398 except different amines were used instead of n-butylamine.







TABLE 21



Example #
R 9
Data



399









MS 555 [M + H] +

400









MS 556 [M + H] +


















EXAMPLE 401
N-(2,4-Dichlorophenyl)-N′-[-(2,5-bistrifluoromethylphenyl)-2-(imidazol-N-yl)-ethyl]-N″-cyanoguanidine

A. 1-(2,5-Bistrifuoromethylphenyl)-2-(benzimidazol-2-yl)ethylamine. To a stirred solution of 1,1,1,3,3,3-hexamethyldisilazane (2.91 mL, 13.8 mmol, 1.11 equiv) in 13 mL anhydrous THF at 0° C. was added n-butyllithium (5.20 mL of a 2.5 M solution in hexane, 13.0 mmol, 1.05 equiv). After 15 min, 2,5-bistrifluoromethylbenzaldehyde (2.04 g, 8.43 mmol) in anhydrous THF (4 mL) at 0° C. was slowly added, followed by chlorotrimethylsilane (1.73 mL, 1.6 mmol, 1.10 equiv). The mixture was partitioned between EtOAc and water, and the organic layer was washed with brine (3×50 mL), dried (Na 2 SO 4 ), and concentrated to give Compound A as a solid.

B. N-(2,4-Dichlorophenyl)-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(imidazol-1-yl)-ethyl]-N″-cyanoguanidine. To a stirred solution of 1-(2,5-bistrifuoromethylphenyl)-2-(imidazol-1-yl)ethylamine (1.1 g, 3.4 mmol) in DMF at rt, N-cyano-N′-(2,4-dichlorophenyl)thiourea (1.1 g, 4.1 mmol) was added, followed by N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide (800 mg, 4.1 mmol). The mixture was allowed to stir at rt for 18 h and then partitioned between EtOAc and saturated ammonium chloride solution. The organic layer was separated and washed with saturated ammonium chloride solution (3×50 mL). The organic layer was dried and concentrated, and the residue was purified by silica gel column chromatography (EtOAc, MeOH, NH 4 OH; 95:5:0.1) to give a solid (350 mg). MS (ES): m/z 535 [M+H] + .

EXAMPLES 402-430
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(substituted)carbonylguanidines









Compounds having the formula (Iaa) wherein R 9 has the values listed in Table 22 were prepared following the same or similar procedure as for Example 390, except instead of isoniconamide, different ureas were used.








TABLE 22



Exam-




ple #
R 9
Appearance
Data



402









White solid
1 H NMR (400 MHz, MeOD) δ 1.4 (1H, m), 1.50 (3H, m), 2.15 (1H, dd, J = 16.0, 8.0 Hz), 4.7 (2H, m), 6.0 (1H, m), 7.2-7.7 (9H, m), 8.95 (1H, s).

403









White powder
MS 532

404









Yellow oil
MS 496

405










MS 464

406










MS 518

407










MS 494

408










MS 493

409










MS 504

410










MS 490

411










MS 476

412










MS 542

413










MS 542

414










MS 555

415










MS 555

416










MS 556

417









White solid
MS 506

418









White solid
MS 492

419









Pale yellow oil
MS 508

420









Colorless oil
MS 501

421









White solid
MS 490

422









White solid
MS 490

423









White solid
MS 490

424









Yellow oil
MS 574

425









Yellow oil
MS 532

426









Yellow oil
MS 586

427









Yellow oil
MS 558

428









White solid
MS 544

429









White solid
MS 591

430









White solid
MS 558














































EXAMPLES 431-448









Compounds having the formula (Iab) wherein R 9 has the values listed in Table 23 were prepared following the same or similar procedure as Example 390, except the ethylamine added was 1-(2,4-difluorophenyl)-2-(imidazol-1-yl)ethylamine, and different ureas were used instead of isoniconamide.







TABLE 23



Example #
R 9
Data



431









MS 475

432









MS 504

433









MS 431

434









MS 485

435









MS 461

436









MS 460

437









MS 447

438









MS 471

439









MS 457

440









MS 443

441









MS 463

442









MS 485

443









MS 482

444









MS 509

445









MS 509

446









MS 509

447









MS 523

448









MS 524


































EXAMPLES 449-456









Compounds having the formula (Iac) wherein R 9 has the values listed in Table 24 were prepared following the same or similar procedure as Example 390, except the ethylamine used was 1-(2,5-Bistrifuoromethylphenyl)-2-(imidazol-2-yl)ethylamine and different ureas were used instead of isoniconamide.








TABLE 24



Example #
R 9
Appearance
Characterization



449









White solid
MS 574

450









White solid
MS 560

451









Colorless oil
MS 544

452









Yellow oil
MS 558

453









White solid
MS 586

454









White solid
MS 572

455









Yellow oil
MS 626

456









Yellow oil
MS 576
























EXAMPLES 457-480
N-[1-(2,4-Dichlorophenyl)-2-(benzimidazol-1 yl)-ethyl]-N′-(4-Chlorophenyl)-N″-(Substituted)carbonylguanidines









Compounds having the formula (Iad) wherein the phenyl group Ar and R 9 have the values listed in Table 25 were prepared following the same or similar procedure as Example 390, except instead of isoniconamide, different ureas were used, and and the ethylamines used were different 1-(Dihalosubstitutedphenyl)-2-(benzimidazol-1-yl)ethylamines.








TABLE 25



Example #
Ar
R 9
Data



457


















MS 608

458


















MS 556

459


















MS 558

460


















MS 542

461


















MS 568

462


















MS 540

463


















MS 526

464


















MS 592

465


















MS 592

466


















MS 592

467


















MS 555

468


















MS 522

469


















MS 524

470


















MS 525

471


















MS 509

472


















MS 619

473


















MS 518

474


















MS 576

475


















MS 536

476


















MS 507

477


















MS 493

478


















MS 560

479


















MS 560

480


















MS 560








































EXAMPLES 481-490
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1 yl)-ethyl]-N′-(Substituted benzyl)-N ″-(Substituted)carbonylguanidines









Compounds having the formula (Iae) wherein R 21 and R 9 have the values listed in Table 26 were prepared following the same or similar procedure as Example 390, except instead of isoniconamide different ureas were used, and instead of 4-chlorophenylthioisocyante, different benzylisothiocyanates were used.









TABLE 26



Example #
R 21
R 9
Appearance
Characterization



481


















Colorless oil
MS 572

482


















Colorless oil
MS 520

483


















Colorless oil
MS 504

484


















Colorless oil
MS 600

485


















Colorless oil
MS 490

486


















Colorless oil
MS 591

487


















White solid
MS 606; 1 H NMR (500 MHz, MeOD) δ 1.3-1.4 (1H, m), 1.51 (3H, d, J = 15.0 Hz), 2.16 (1H, d, J = 10.0 Hz), 4.4-4.8 (4H, m), 6.0-6.3 (1H, m), 7.0- 7.3 (2H, m), 7.3-7.7 (7H, m), 8.96 (1H, s).

488


















Colorless oil
MS 538

489


















White solid
MS 554

490


















White solid
MS 634


























N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-(4-tert-Butylphenyl)sulfonylguanidine

A. 4-tert-Butylphenylsulphonylamine.

To a 500-mL round-bottomed flask was added (4-tert-butylphenyl) sulfonyl chloride (2.30 g, 10.0 mmol) in 100 mL CH 2 Cl 2 at 0° C. and then concentrated NH 4 OH (50 mL, 100 mmol, 10 equiv). The mixture was allowed to warm to rt and stirred for 20 h. The solvent was evaporated under diminished pressure and the remaining slurry was filtered by Büchner funnel, giving 1.60 g (75%) of Compound A as a white solid.


B.

To 1.60 g of Compound A in 30 mL DMF at 0° C. in a 250-mL round-bottomed flask was added NaH (0.72 g, 25 mmol, 3.5 equiv). This mixture was allowed to stir at 0° C. for 30 min and then p-chlorophenylisothiocyanate (1.70 g, 10 mmol, 1 equiv) was added. The mixture was slowly warmed to rt over 24 h. The mixture was poured into ice-water and the solution acidified to pH 2. The precipitate was collected to give 2.76 g (72%) of Compound B as a white solid.
C. Example 491. To a stirred solution of compound B (1.91 g, 5 mmol) in DMF was added 1-(2,4-dichlorophenyl)-2-imidazol-1-yl)ethylamine (1.35 g, 5 mmol, 1 equiv), followed by 1 mL diisopropylethylamine. The mixture was allowed to stir at rt for 15 min, and then HgCl 2 was added (2 g, 7.5 mmol, 1.5 equiv). After stirring at rt for 20 h, the mixture was poured into 1N HCl solution, and then filtered by Buchner funnel. The aqueous solution was neutralized to pH 9-10, extracted with EtOAc, and then purified using preparative HPLC, giving 2.0 g (63%) of Example 491 as a white solid. 1 H NMR (400 MHz, MeOD) δ 1.30 (9H, s), 4.63 (2H, d, J=8.0 Hz), 5.7 (1H, m), 6.98 (2H, d, J=8.0 Hz), 7.4-7.6 (11H, m), 8.9 (1H, s). MS (ES): m/z 604 [M+H] + .
EXAMPLE 492
N-[1-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)-ethyl]-N′-(4-chlorophenyl)-N″-isopropylsulfonylguanidine.









The same procedure of Example 491 was followed, except in step A, t-butyl sulfonyl chloride was used in place of 4-(t-butyl)phenyl sulfonyl chloride to give 50% yield of Example 492 as a white solid. 1 H NMR (400 MHz, MeOD) δ 1.15 (6H, d, J=4.0 Hz), 2.98 (1H, m), 4.60 (2H, d, J=4.0 Hz), 5.82 (1H, t, J=4.0 Hz), 7.13 (2H, d, J=8.0 Hz, 7.4-7.6 (7H, m), 8.91 (1H, s). MS (ES): m/z 514 [M+H] + .
EXAMPLE 493
N-[1-(2,4-Dichlorophenyl)]-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(benzimidazol-2-yl)-ethyl]-N′″-cyanoguanidine.

A. 1-[2,5-Bis(trifluromethyl)phenyl]-2-(benzimidazol-2-yl)-ethylamine.

To a flame-dried 200-mL round-bottomed flask containing hexamethyldisilazane (2.91 mL, 13.8 mmol, 1.11 equiv) in 13 mL THF at 0° C. was added n-butyllithium (5.20 mL of a 2.5 M solution in hexanes, 13.0 mmol, 0.95 equiv). After 10 minutes, 2,5-bis-(trifluoromethyl)benzaldehyde (3.00 g, 12.4 mmol) was added as a solution in 5 mL THF. After 5 minutes, chlorotrimethylsilane (1.73 mL, 13.6 mmol, 1.10 equiv) was added, and the mixture was allowed to stir at 0° C. for an additional 20 minutes. During this time, to a separate flame-dried 200-mL round-bottomed flask containing 2-methylbenzimidazole (1.63 g, 12.3 mmol, 1.05 equiv) in 45 mL THF at 0° C. was added n-butyllithium (9.91 mL of a 2.5 M solution in hexanes, 24.8 mmol, 2.00 equiv), and the mixture was stirred 20 minutes. To the N-silylimine generated in the first flask was then added BF 3 .OEt 2 (1.65 mL, 12.4 mmol, 1.00 equiv) all at once, followed by the dianion of 2-methylbenzimidazole generated in the second flask (transferred via cannula). The combined reaction mixture was then allowed to stir, warming to rt overnight. The mixture was then poured into a 500-mL separatory funnel containing 100 mL saturated NH 4 Cl solution, and the resultant biphasic mixture was extracted with CHCl 3 (2×100 mL). The combined organics were washed with 100 mL brine, dried over Na 2 SO 4 , and concentrated under reduced pressure. Purification by flash chromatography (silica gel, 10% MeOH in CH 2 Cl 2 ) provided 1.61 g (35%) of the desired benzylic amine as an off-white solid. HPLC: 97% at 2.12 min (retention time) (YMC ODSA column 4.6×50 mm eluting with 10-90% aqueous MeOH over 4 min containing 0.1% TFA, 4 mL/min, monitoring at 220 nm) MS (ES): m/z 374 [M+H] + .
B. N-[1-(2,4-Dichlorophenyl)]-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(benzimidazol-2-yl)-ethyl]-N″-cyanoguanidine.
This compound was prepared from 1-[2,5-bis(trifluromethyl)phenyl]-2-(benzimidazol-2-yl)-ethylamine and N-cyano-N′-(2,4-dichlorophenyl)thiourea in a manner similar to that previously described for Example 1. HPLC: 99% at 1.75 min (retention time) (YMC S5 ODS column 4.6×33 mm eluting with 10-90% aqueous MeOH over 2 min containing 0.1% TFA, 4 mL/min, monitoring at 220 nm) MS (ES): m/z 585 M+.
EXAMPLE 494
N-[1-(4-Chlorophenyl)]-N′-[1-(2,5-bistrifluoromethylphenyl)-2-(benzimidazol-2-yl)-ethyl]-N″-cyanoguanidine









Example 494 was prepared from 1-[2,5-bis(trifluromethyl)phenyl]-2-(benzimidazol-2-yl)-ethylamine and N-cyano-N′-(4-chlorophenyl)thiourea in a manner similar to that previously described for Example 1, providing the desired cyanoguanidine as an off-white solid. HPLC: 99% at 3.16 min (retention time) (YMC ODSA column 4.6×50 mm eluting with 10-90% aqueous MeOH over 4 min containing 0.1% TFA, 4 mL/min, monitoring at 220 nm) MS (ES): m/z 551 [M+H] + .