申请人:American Hoechst Corporation
公开号:US04166119A1
公开(公告)日:1979-08-28
Novel Spiro[dihydrobenzofuran-piperidine and pyrrolidine]s and methods of preparing same are described. These compounds are useful as analgetics and tranquilizers and as intermediates.
描述了新型螺环[二氢苯并呋喃-哌啶和吡咯烷]化合物及其制备方法。这些化合物可用作镇痛剂和镇静剂,也可用作中间体。