The present invention relates to processes for preparing precursors of picenadol, (±3)-(1.3α-dimethyl-4α-propyl-4β-piperidinyl)phenol, hydrochloride, a known analgesic. Certain of the compounds prepared by the present process are novel as well.
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。本工艺制备的某些化合物也很新颖。