This invention relates to novel isoquinolinesulfonamide derivates of Formula (I):
wherein A is a C0-10 alkylene group or a C0-10 alkylene group having a C1-10 alkyl group, a phenyl group, a substituted phenyl group or a phenylalkyl group; R1 and R2 each is a hydrogen atom; or R1 and R2 are linked directly to form an ethylene group unsubstituted or substituted with a C1-4 alkyl group;
R3 and R4 each is a hydrogen atom, a C1-6 alkyl group or linked directly to form a C2-6 alkylene group; and the pharmaceutically acceptable acid addition salt thereof, and to a precess for preparing them. The isoquinoline derivatives possess a relaxatory action for vascular smooth muscle and action for increasing blood flow and are useful as a vasodilator and a hypotensor.
本发明涉及式(I)的新型
异喹啉磺酰胺衍
生物:
其中 A 为 C0-10 烯基或具有 C1-10 烷基的 C0-10 烯基、苯基、取代苯基或苯基烷基;R1 和 R2 各为氢原子;或 R1 和 R2 直接连接形成未取代或被 C1-4 烷基取代的
乙烯基;
R3和R4各自为氢原子、C1-6烷基或直接连接形成C2-6亚烷基;及其药学上可接受的酸加成盐,以及制备它们的预处理方法。
异喹啉衍
生物具有松弛血管平滑肌和增加血流量的作用,可用作血管扩张剂和降压剂。