| 摘要 |
<p>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 <IMAGE> 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 <IMAGE> 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.</p> |
