Invention Grant
US09012689B2 Process for the preparation of O-desmethyl venlafaxine and intermediate for use therein 有权
用于制备O-去甲基文拉法辛及其中间体的方法

Process for the preparation of O-desmethyl venlafaxine and intermediate for use therein
Abstract:
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.
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