1-(3,4,5-Trimethoxycinnamoyl)-4-aminocarbonylethyl-substituted piperazine derivatives represented by general formula (I): ##STR1## wherein R is a straight- or branched-chain alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 5 to 7 carbon atoms, and pharmaceutically acceptable acid addition salts thereof are disclosed. The 1-(3,4,5-trimethoxycinnamoyl)-4-aminocarbonylethyl-substituted piperazine derivatives are useful as vasodilator agents.
公式(I)所代表的1-(3,4,5-
三甲氧基肉桂酰基)-4-
氨基羰基乙基取代
哌嗪衍
生物,其中R为直链或支链烷基,其碳原子数为1到6,或环烷基,其碳原子数为5到7,以及其药学上可接受的酸加盐被揭示。这些1-(3,4,5-
三甲氧基肉桂酰基)-4-
氨基羰基乙基取代
哌嗪衍
生物可用作血管扩张剂。