The present invention pertains to a crystalline and stable form of (βR,γR)-γ-ethyl-N,N,β-trimethyl-3-(phenylmethoxy)benzenepropanamine, as well as to processes for its preparation, and its use in the preparation of tapentadol and pharmaceutically acceptable salts thereof.
本发明涉及(βR,γR)-γ-乙基-N,N,β-三甲基-3-(苯甲氧基)苯
丙胺的晶体稳定形式,以及其制备方法和在制备tapentadol及其药物可接受盐中的使用。