申请人:AMERICAN HOME PRODUCTS CORPORATION
公开号:EP0115920A2
公开(公告)日:1984-08-15
Herein is disclosed pyrazino[2',3'-3,4]pyrido[1,2-a]indole derivatives, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions. The derivatives are useful for treating hypertension in a mammal. The derivatives have the formula
in which R1 is hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; R2 is hydrogen or alkyl having one to three carbon atoms; and R3 and R4 each independently is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cyclo(lower)alkyl, lower alkanoyl, hydroxy(lower)alkyl, lower alkoxycarbonyl-(lower)alkyl, phenyl(lower)alkyl or phenoxy(lower)alkyl.
本文公开了吡嗪并[2',3'-3,4]吡啶并[1,2-a]吲哚衍生物、其治疗上可接受的酸加成盐、其制备工艺、使用这些衍生物的方法以及药物组合物。这些衍生物可用于治疗哺乳动物的高血压。这些衍生物的化学式为
其中 R1 是氢、卤素、低级烷基、低级烷氧基或三氟甲基;R2 是氢或具有一至三个碳原子的烷基;R3 和 R4 各自独立地是氢、低级烷基、低级烯基、低级炔基、环(低级)烷基、低级烷酰基、羟基(低级)烷基、低级烷氧基羰基(低级)烷基、苯基(低级)烷基或苯氧基(低级)烷基。