发明授权
US4166119A Analgesic and tranquilizing spiro[dihydrobenzofuran]piperidines and pyrrolidines 失效
分析和转运SPIRO(二氢苯并呋喃)哌嗪和吡咯烷

Analgesic and tranquilizing spiro[dihydrobenzofuran]piperidines and
pyrrolidines
摘要:
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.
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