Novel 1,5-benzothiazepine derivatives of the formula:
wherein R1 is lower alkyl or lower alkoxy, R2 is hydrogen atom or lower alkanoyl, each one of R3 and R4 is lower alkyl, Ring A is a substituted benzene ring of the formula:
Ra is lower alkyl, lower alkoxy, lower alkylthio or benzyloxy, each one of Rb and R° is lower alkyl, lower alkoxy or halogen atom, and either one of Rd and Re is fluorine atom and the other one is hydrogen atom, or a pharmaceutically acceptable acid addition salt thereof and processes for their production. In form of pharmaceutical compositions said derivative (I) and its salt are useful as a hypotensive agent and/or a cerebral or coronary vasodilator.
式中的新型 1,5-
苯并
硫氮杂卓衍
生物:
其中R1为低级烷基或低级烷
氧基,R2为
氢原子或低级烷酰基,R3和R4各自为低级烷基,环A为式中的取代
苯环:
Ra为低级烷基、低级烷
氧基、低级烷
硫基或苄
氧基,Rb和R°各自为低级烷基、低级烷
氧基或卤原子,Rd和Re中的一个为
氟原子,另一个为
氢原子,或其药学上可接受的酸加成盐及其生产工艺。在药物组合物中,所述衍
生物 (I) 及其盐可用作降血压剂和/或脑或
冠状动脉血管扩张剂。