Novel derivatives of 3,4,5-trimethoxy cinnamoyl piperazine, their salts, the process for preparing the same and their application in therapeutics

摘要

1-substituted-4-(3,4,5-trimethoxy) cinnamoyl piperazine compounds are disclosed. The compounds exhibit a substantial activity of stimulating cardiac contractile force, without affecting the cardiac frequency, and they also exhibit coronary vasodilatory and hypotensive effects.