- DIHYDROPYRIDINE CALCIUM ANTAGONIST COMPOUNDS, PREPARATION METHODS AND MEDICAL USES THEREOF
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A dihydropyridine (DHP) calcium antagonist compound and its preparation method and medical use are related to preparation methods of compounds of general formulas (I) and (II) as shown below and their pharmaceutical salts and applications for treating cardiovascular diseases, and R1 represents a substituted or unsubstituted heterocyclic, aromatic ring or aralkyl group, and the substituent may be C1-C4 alkyl, C1-C4 alkoxyl, halogen, cyano, trifluoromethyl, trifluoromethoxyl, methylthio, nitro, amino or hydroxyl group; R2 represents a C1-C8 alkyl group; R3 and R4 are the same or different, and each represents a hydrogen, halogen, cyano, trifluoromethyl, trifluoromethoxyl, methylthio, nitro or amino group or a C1-C4 alkyl, C1-C4 alkoxyl, C1-C4 alkenyl, or C1-C4 alkinyl group; R5 and R6 are the same or different, and each represents a C1-C4 alkyl group; X represents O, S or a single bond; m=0-6, n=1-6, and m and n are the same or different.
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(2010/12/01)
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- Substituted heterocyclylalkyl esters of 1,4-dihydropyridine-3,5-dicarboxylic acids
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Dihydropyridine derivatives and acid addition salts thereof which are of use as prophylactic or/and therapeutic drugs for cardiovascular diseases, said dihydropyridine derivatives having the formula STR1 wherein R1, R2 and R3 are the same or different and each is alkyl, cycloalkyl, cycloalkylalkyl or alkoxyalkyl; R4 and R5 are the same or different and each is hydrogen, halogen, nitro, trifluoromethyl, alkyl, cycloalkyl, alkoxy, cyano, alkoxycarbonyl or alkylthio; R6 is hydrogen, alkyl, cycloalkyl, aralkyl, aryl or a pyridyl; X is oxygen, sulfur, vinylene, azomethine or a group of the formula STR2 A is alkylene; Ar is aryl or a pyridyl; m is an integer of 1 to 3; n is an integer of 0 to 2.
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