申请人:Sandoz Ltd.
公开号:US03958003A1
公开(公告)日:1976-05-18
The present invention concerns new heterocyclic compounds of the formula: ##SPC1## Wherein R.sub.1 and R.sub.2 are inter alia alkyl, chlorine or methoxy, R.sub.3 is hydroxy, alkylcarboxy or monoalkylcarbamoyloxy, and A is protected or unprotected carbonyl. The compounds possess analgesic and central nervous system depressant properties.
本发明涉及新的杂环化合物,其化学式为:##SPC1## 其中R.sub.1和R.sub.2等为烷基、氯或甲氧基,R.sub.3为羟基、烷基羧基或单烷基氨基甲氧基,A为保护或未保护的羰基。这些化合物具有镇痛和中枢神经系统抑制作用。