申请人:Nippon Chemiphar Co., Ltd.
公开号:US03933826A1
公开(公告)日:1976-01-20
Protoberberine derivatives having the general formula: ##SPC1## Wherein R.sub.1 is a lower alkoxy group, i.e. C.sub.1 to C.sub.5 alkoxy; R.sub.2 is a lower alkyl group, i.e. C.sub.1 to C.sub.5 alkyl, pyridyl group, phenyl group substituted by two or three lower alkoxy groups, i.e. C.sub.1 to C.sub.5 alkoxy or a phenylvinyl group substituted by two or three lower alkoxy groups, i.e. C.sub.1 to C.sub.5 alkoxy; having excellent analgesic, vasodilating and hypotensive effects and are prepared from know protoberberines by reaction with carobxylic acids.
Protoberberine衍生物具有以下一般公式:##SPC1## 其中R.sub.1是较低的烷氧基,即C.sub.1到C.sub.5的烷氧基;R.sub.2是较低的烷基,即C.sub.1到C.sub.5的烷基,吡啶基,被两个或三个较低的烷氧基,即C.sub.1到C.sub.5的烷氧基取代的苯基,或被两个或三个较低的烷氧基,即C.sub.1到C.sub.5的烷氧基取代的苯乙烯基;具有出色的镇痛、扩血管和降压作用,并且是通过与羧酸反应制备自已知的Protoberberines。