Isoxazoline fibrinogen receptor antagonists
AssigneeDuPont Pharmaceuticals Company
InventorsJohn Wityak, Prabhakar K. Jadhav
Life of this patent
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Abstract
This invention relates to novel isoxazolines of formula (I): or a pharmaceutically acceptable salt form thereof. This invention also relates to novel isoxazolines of formula (I) which are useful as antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex, to pharmaceutical compositions containing such compounds, processes for preparing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of thromboembolic disorders.
Claims37
A compound of Formula (I):
- or a pharmaceutically acceptable salt form thereof wherein:
- R1 is selected from
- R2a(R3)N—V—,
- R2a(R3)N(CH2)q—,
- R2(R2b)N(R3N═)C—V—,
- R2(R2b)N(R3N═)C(CH2)q—,
- R2(R2b)N(R3N═)CNH—V—,
- R2(R11O) N (R3N═)C—V—,
- R2(R2b)N(R11ON═)C—V—,
- V is selected from:
- `(C1-C4 alkyl)-,
- `(C2-C4 alkenyl)-,
- `(C2-C4 alkynyl)-,
- `(phenyl), said phenyl substituted with 0-2 groups independently selected from R9,
- (pyridyl)-, said pyridyl substituted with 0-2 groups independently selected from R9, or
- (pyridazinyl)-, said pyridazinyl substituted with 0-2 groups independently selected from R9;
- Z is selected from:
- a bond, O, S, S(═O), and S(═O)2;
- R2a is R2 or R2(R2b)N(R3N═)C—;
- R2, R2b, and R3 are independently selected from:
- H, C1-C10 alkyl, C3-C6 alkenyl, C3-C6 alkynyl, C3-C10 cycloalkyl, C3-C10 cycloalkyl(C1-C4 alkyl)-, C2-C7 alkylcarbonyl, C1-C4 haloalkyl, aryl, arylcarbonyl, aryl(C1-C4 alkyl)-, benzhydryl, benzhydry1(C1-C4 alkyl)-, heteroaryl, heteroaryl (C1-C5 alkyl)-, and
- a cleavable protecting group selected from:
- C1-C6 alkoxycarbonyl,
- C3-C11 cycloalkoxycarbonyl,
- C7-C11 bicycloalkoxycarbonyl,
- aryloxycarbonyl,
- aryl(C1-C10 alkoxy)carbonyl,
- (C1-C6 alkyl)carbonyloxy(C1-C4 alkoxy)carbonyl,
- arylcarbonyloxy(C1-C4 alkoxy)carbonyl, and
- (C3-C11 cycloalkyl)carbonyloxy(C1-C4 alkoxy)carbonyl,
- wherein at least one of R2, R2b, and R3 is H or a cleavable protecting group;
- wherein said aryl groups of R2, R2b, and R3 may be substituted with 0-3 groups selected from hydroxy, halogen, C1-C6 alkoxy, C1-C6 alkyl, CF3, —CN, —SO2(C1-C4 alkyl), —S(C1-C4 alkyl), —NR21R22, C1-C4 haloalkyl, methylenedioxydiyl, and ethylenedioxydiyl;
- and
- said heteroaryl groups of R2, R2b, and R3 may be substituted with 0-2 groups selected from hydroxy, halogen, C1-C6 alkoxy, C1-C6 alkyl, CF3, SO2CH3, and —NR21R22;
- alternatively, R2 and R2b can be taken together with the nitrogen atom to which they are attached to form a 5-10 membered heterocyclic ring optionally containing one additional heteroatom selected from:
- N, O, or S;
- said heterocyclic ring being monocyclic or bicyclic;
- said heterocyclic ring being substituted with 0-2 R4;
- R4, when a substituent on carbon, is independently selected from:
- H, C1-C4 alkyl, aryl, and aryl(C1-C6 alkyl)-, wherein said aryl groups may be optionally substituted with 0-3 groups selected from hydroxy, halogen, C1-C6 alkoxy, C1-C6 alkyl, CF3, SCH3, S(O)CH3, SO2CH3, —NR21R22, C1-C4 haloalkyl, methylenedioxydiyl, and ethylenedioxydiyl;
- alternatively, when two R4 groups are attached to adjacent carbon atoms, they may be taken together with the atoms to which they are attached to form a fused 5-7 membered saturated, unsaturated or aromatic carbocyclic ring;
- alternatively, when R4 is attached to a saturated carbon atom, it may also be ═O or ═S;
- R4 when a substituent on nitrogen, is independently selected from:
- H, C1-C6 alkyl, C3-C6 alkenyl, C1-C10 alkoxycarbonyl, C1-C10 alkylcarbonyl, C1-C10 alkylsulfonyl, C3-C10 cycloalkyl, C3-C10 cycloalkyl(C1-C4 alkyl)-, C3-C11 cycloalkoxycarbonyl, C7-C11 bicycloalkoxycarbonyl, aryl, aryl(C1-C10 alkyl)-, benzhydryl, benzhydryl(C1-C4 alkyl)-, arylcarbonyl, aryloxycarbonyl, arylsulfonyl, aryl(C1-C10 alkyl)sulfonyl, aryl(C2-C10 alkenyl)sulfonyl, aryl(C1-C10 alkoxy)carbonyl, heteroaryl, heteroarylsulfonyl, heteroarylcarbonyl, heteroaryl(C1-C10 alkyl)-, and heteroaryl(C1-C10 alkyl)carbonyl,
- wherein said aryl or heteroaryl groups may be additionally substitututed with 0-2 groups selected from hydroxy, halogen, C1-C6 alkoxy, C1-C6 alkyl, CF3, SCH3, SOCH3, SO2CH3, or —NR21R22;
- R4 when a substituent on sulfur, may be ═O;
- X is —OCH2CH(Wa)—, —SCH2CH(Wa)—, —NHCH2CH(Wa)—, —OCH(Wb)—, —SCH(Wb)—, —NHCH(Wb)—, —OCH(Wb)CH2—, —SCH(Wb)CH2—, or —NHCH(Wb)CH2—;
- Y is selected from hydroxy,
- C1-C10 alkyloxy,
- C3-C11 cycloalkyloxy,
- C6-C10 aryloxy,
- C7-C11 arylalkyloxy,
- C2-C10 alkylcarbonyloxyalkyloxy,
- C2-C10 alkoxycarbonyloxyalkyloxy,
- C2-C10 alkoxycarbonylalkyloxy,
- C4-C10 cycloalkylcarbonyloxyalkyloxy,
- C4-C10 cycloalkoxycarbonyloxyalkyloxy,
- C4-C10 cycloalkoxycarbonylalkyloxy,
- C7-C11 aryloxycarbonylalkyloxy,
- C7-C12 aryloxycarbonyloxyalkyloxy,
- C7-C12 arylcarbonyloxyalkyloxy,
- C4-C10 alkoxyalkylcarbonyloxyalkyloxy,
- (5-(C1-C4 alkyl)-1,3-dioxa-cyclopenten-2-one-yl)methyloxy,
- (5-aryl-1,3-dioxa-cyclopenten-2-one-yl)methyloxy, and
- (R28) (R29)N-(C1-C10 alkoxy)-;
- Wa is selected from:
- H,
- hydroxy,
- —NR16R20,
- —NR25R26,
- C1-C10 alkoxy,
- C1-C10 alkyl substituted with 0-3 R8, and
- aryl substituted with 0-3 R8,
- Wb is selected from:
- H,
- CH2OH,
- CH2OR12,
- CH2CO2R12,
- CH2C(═O)NHR18,
- CH2NR16R20,
- CH2NR25R26,
- C1-C8 alkyl substituted with 0-2 R8,
- C3-C6 alkenyl,
- C3-C10 cycloalkyl,
- C4-C11 cycloalkylmethyl,
- heteroaryl,
- heteroaryl(C1-C6 alkyl),
- aryl substituted with 0-3 R8, and
- aryl(C1-C6 alkyl), said aryl substituted with 0-3 R8;
- R5 and R6 are taken together to be C═O;
- R7 is H or C1-C4 alkyl substituted with 0-3 R8;
- R7a and R7b are independently selected from H, methyl, and ethyl;
- alternatively, when R7 and R7a occur on adjacent carbons R7 and R7a may be taken together to form a carbon-carbon double bond;
- alternatively, when R7a and R7b occur on adjacent carbons R7a and R7b may be taken together to form a six carbon aromatic ring;
- R8 is selected from:
- H, hydroxy, cyano, —CO2R12, —C(═O)R13, —OC(═O)R13, —OC(═O)OR14, —OR12, —OCH2CO2R12, —CO2CH2CO2R12, —OC(═O)NR23R24, —C(═O)NR23R24, —NR25R26, —NR27C(═O)R13, —NR27C(═O)OR14, —NR27SO2R14, —SR14, —SOR14, —SO2R14, —SO2NR23R24, C1-C10 alkoxy, C1-C10 alkylcarbonyl, C2-C6 alkenyl, C3-C10 cycloalkyl, C4-C11 cycloalkylmethyl,
- aryl, wherein said aryl is substituted with 0-3 groups selected from halogen, C1-C6 alkoxy, C1-C6 alkyl, halo, CF3, CO2R12, SO2Me, SOMe, SMe or —NMe2,
- aryl(C1-C4 alkyl)-, wherein said aryl is substituted with 0-3 groups selected from halogen, C1-C6 alkoxy, C1-C6 alkyl, CF3, CO2R12, SO2Me, SOMe, SMe, or —NMe2, and
- a 5-10 membered heterocyclic ring containing 1-3 N, O, or S heteroatoms, wherein said heterocyclic ring may be saturated, partially saturated, or fully unsaturated, said heterocyclic ring being substituted with 0-2 groups selected from halogen, C1-C6 alkoxy, C1-C6 alkyl, halo, CF3, CO2R12, SO2Me, SOMe, SMe or —NMe2;
- R9 is selected from H, halogen, CF3, CN, C1-C4 alkyl, or C1-C4 alkoxy;
- R10 is selected from:
- H, hydroxy, CN, carboxy, —NR25R26;
- C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C3-C7 cycloalkyl, C7-C14 bicycloalkyl, C1-C6 alkoxy, C1-C6 alkylthio, C1-C6 alkylsulfinyl, C1-C6 alkylsulfonyl, C1-C6 alkylcarbonyl, C1-C6 alkoxycarbonyl, aryl, piperidinyl, morpholinyl, and pyridinyl;
- R11 is selected from:
- H, C1-C8 alkyl, C3-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, aryl, aryl(C1-C4 alkyl)-, and C1-C10 alkyl substituted with 1-2 R10;
- R12 is selected from:
- H, C1-C8 alkyl, C3-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, aryl, aryl(C1-C4 alkyl)-, and C1-C10 alkyl substituted with 1-2 R10;
- R13 is selected from:
- hydrogen, C1-C8 alkyl, C3-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, aryl, aryl(C1-C4 alkyl)-, heteroaryl, heteroaryl(C1-C4 alkyl)-, and C1-C10 alkyl substituted with 1-2 R10;
- R14 is selected from:
- C1-C8 alkyl, C2-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, aryl, aryl(C1-C4 alkyl)-, and C1-C10 alkyl substituted with 1-2 R10;
- R15 is selected from:
- H, OH, —OR12, —CO2R12, —C(═O)NR23R24, —OC(═O)NR23R24,
- C1-C10 alkoxycarbonyl substituted with 0-2 R8;
- C1-C10 alkyl substituted with 0-3 R8;
- C2-C10 alkenyl substituted with 0-3 R8;
- and
- C1-C10 alkoxy substituted with 0-3 R8;
- R16 is selected from:
- —C(═O)OR17, —C(═O)R18, —C(═O)NR17R18, —C(═O)NHSO2R17, —C(═O)NHC(═O)R17, —C(═O)NHC(═O)OR17, —C(═O)NHSO2NHR17, —SO2R17, —SO2NR17R18, and —SO2NHC(═O)OR17;
- R17 is selected from:
- C1-C8 alkyl substituted with 0-2 R19,
- C3-C8 alkenyl substituted with 0-2 R19,
- C3-C8 alkynyl substituted with 0-2 R19,
- C3-C8 cycloalkyl substituted with 0-2 R19,
- aryl substituted with 0-4 R19,
- aryl(C1-C6 alkyl)-substituted with 0-4 R19,
- a 5-10 membered heterocyclic ring system having 1-3 heteroatoms selected independently from O, S, and N, said heterocyclic ring being substituted with 0-4 R19, and
- C1-C6 alkyl substituted with a 5-10 membered heterocyclic ring system having 1-3 heteroatoms selected independently from O, S, and N, said heterocyclic ring being substituted with 0-4 R19;
- R18 is selected from H or R17;
- R19 is selected from:
- H, halogen, CF3, CN, NO2, NR25R26, C1-C8 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C3-C11 cycloalkyl, C3-C11 cycloalkyl(C1-C4 alkyl)-, aryl, aryl(C1-C6 alkyl)-, C1-C6 alkoxy, and C1-C4 alkoxycarbonyl;
- R20 is selected from:
- H, C1-C10 alkyl, C2-C6 alkenyl, C3-C11 cycloalkyl, C3-C11 cycloalkyl(C1-C4 alkyl)-, aryl, and aryl(C1-C10 alkyl)-;
- R21 and R22 are each independently H, methyl, ethyl, propyl, or butyl;
- R23 is selected from:
- hydrogen, C1-C8 alkyl, C3-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, hydroxy, C1-C6 alkoxy, benzyloxy, aryl, aryl(C1-C4 alkyl)-, heteroaryl, heteroaryl(C1-C4 alkyl)-, adamantylmethyl, and C1-C10 alkyl substituted with 1-2 R10;
- R24 is selected from:
- C1-C8 alkyl, C2-C6 alkenyl, C3-C11 cycloalkyl, C4-C11 cycloalkylmethyl, aryl, aryl(C1-C4 alkyl)-, and C1-C10 alkyl substituted with 1-2 R10;
- R25 and R26 are, independently, selected from:
- H, C1-C10 alkyl, C1-C10 alkoxycarbonyl, C1-C10 alkylcarbonyl, C1-C10 alkylsulfonyl, aryl, aryl(C1-C4 alkyl)-, arylcarbonyl, aryloxycarbonyl, arylsulfonyl, aryl(C1-C10 alkoxy)carbonyl, aryl(C1-C10 alkyl)sulfonyl, aryl(C2-C10 alkenyl)sulfonyl, C2-C6 alkenyl, C3-C10 cycloalkyl, C3-C10 cycloalkyl(C1-C4 alkyl)-, C3-C10 cycloalkoxycarbonyl, C7-C11 bicycloalkoxycarbonyl, heteroaryl, heteroarylcarbonyl, heteroarylsulfonyl, and heteroaryl(C1-C4 alkyl)carbonyl,
- wherein said aryl groups are optionally substituted with 1-3 substituents selected from the group consisting of:
- C1-C4 alkyl, C1-C4 alkoxy, halo, CF3, and NO2;
- R27 is selected from H, methyl, ethyl, propyl, butyl, benzyl, phenethyl, cyclopropyl, and cyclopropylmethyl;
- R28 and R29 are independently selected from:
- H, C1-C8 alkyl, C3-C6 alkenyl, C3-C10 cycloalkyl(C0-C4 alkyl), aryl(C0-C4 alkyl), and heteroaryl(C0-C4 alkyl), wherein said aryl or heteroaryl groups are substituted with 0-2 substituents independently selected from C1-C4 alkyl, C1-C4 alkoxy, F, Cl, Br, CF3, and NO2;
- n is 0 or 1;
- q is 1, 2, 3, or 4;
- r is 0, 1, or 2;
- and
- s is 1, 2, 3, or 4.
Dependencies are inferred from the claim text.