申请人:ELI LILLY AND COMPANY
公开号:EP0247639A2
公开(公告)日:1987-12-02
The present invention relates to processes for preparing precursors of picenadol, (±)3-(1,3α-dimethyl-4α-propyl-4β-piperidinyl)phenol, hydrochloride, a known analgesic.
本发明涉及一种已知镇痛剂--(±)3-(1,3α-二甲基-4α-丙基-4β-哌啶基)苯酚盐酸盐的前体的制备工艺。