The present invention relates to a compound of formula A, wherein R is alkyl.
Compound A may be used as an intermediate in the preparation of O-desmethyl venlafaxine or a salt thereof, and the present invention provides such a preparation, as well as a process for preparing the compound of formula A.
本发明涉及一种化合物A,其中R是烷基。化合物A可用作O-去甲基
文拉法辛或其盐的制备中间体,本发明提供了这样的制备方法,以及制备化合物A的方法。