申请人:Bristol-Myers Company
公开号:US04171363A1
公开(公告)日:1979-10-16
A series of novel 4-amino-2-(thiadiazole-carbonyl piperazinyl)-6,7-dimethoxyquinazolines is disclosed having antihypertensive properties. The thiadiazole substituent may be optionally substituted with alkyl or lower alkoxy carbonylamino groups. A representative embodiment of the invention is 4-amino-6,7-dimethoxy-2-[4-(5-ethoxy-carbonylamino-1,2,3-thiadiazole-4-car bonyl)-piperazin-1-yl]-quinazoline.
本发明揭示了一系列新型4-氨基-2-(噻二唑-羰基哌嗪基)-6,7-二甲氧基喹唑啉,具有降压作用。噻二唑取代基可以选择性地用烷基或较低的烷氧羰基氨基基团取代。本发明的代表实施例是4-氨基-6,7-二甲氧基-2-[4-(5-乙氧羰基氨基-1,2,3-噻二唑-4-羰基)-哌嗪-1-基]-喹唑啉。