A biocatalytic process to obtain optically enriched precursors of trans-4-(4-fluorophenyl)-3-hydroxymethylpiperidines,based on the enzymatic resolution of racemic derivatives of general formula III (where R3 is preferably phenyl or benzyl) using cyclic anhydrydes or the Meldrum's acid (2,2-dimethyl-1,3-dioxane-4,6-dione) as acylating agents of the hydroxyl group. Depending on the enzyme and the chosen reaction conditions, either of the two enantiomers may be obtained with high enantiomeric purity. These compounds are important intermediates in the synthesis of the paroxetine anti-depressive agent.
一种
生物催化过程,用于获得光学富集的trans-4-(4-
氟苯基)-3-羟甲基
哌啶衍
生物的前体,基于对具有一般式III(其中R3最好是苯基或苄基)的外消旋衍
生物进行酶解析,使用环酐或Meldrum's酸(2,2-二甲基-1,3-二氧杂环己-4,6-二酮)作为羟基的酰化剂。根据酶和选择的反应条件,可以获得高对映纯度的两种对映体中的任一种。这些化合物是
帕罗西汀抗抑郁剂合成中的重要中间体。