Novel benzothiazepine derivatives of the formula
wherein R1 and R2 are each lower alkyl, R3 is hydrogen, lower alkyl or hydroxy-lower alkyl, R4 is hydrogen, halogen, lower alkyl, lower alkoxy, lower alkylthio or nitro, and A is lower alkylene and processes for preparing same are disclosed. Said compounds (I) and pharmaceutically acceptable acid addition salts thereof in form of pharmaceutical compositions are useful as cerebral or coronary vasodilators.
式中的新型苯并
硫氮杂卓衍
生物
其中 R1 和 R2 各为低级烷基,R3 为氢、低级烷基或羟基-低级烷基,R4 为氢、卤素、低级烷基、低级烷氧基、低级烷
硫基或硝基,A 为低级亚烷基。以药物组合物形式存在的上述化合物(I)及其药学上可接受的酸加成盐可用作脑或冠状动脉血管扩张剂。