申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04521430A1
公开(公告)日:1985-06-04
A compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each lower alkyl, R.sup.3 is hydrogen, lower alkyl or hydroxy-lower alkyl, R.sup.4 is hydrogen, halogen, lower alkyl, lower alkoxy, lower alkylthio or nitro, and A is lower alkylene, is disclosed. Said compound (I) and a pharmaceutically acceptable acid addition salt thereof are useful as cerebral or coronary vasodilators.
本发明涉及一种化合物,其化学式为:##STR1## 其中,R.sup.1和R.sup.2均为低级烷基,R.sup.3为氢,低级烷基或羟基-低级烷基,R.sup.4为氢,卤素,低级烷基,低级烷氧基,低级烷基硫基或硝基,A为低级烷基。所述化合物(I)及其药学上可接受的酸盐是作为脑血管或冠状动脉扩张剂有用的。