The present invention relates to processes for carrying out the following stereoselective microbial reduction of a racemic tetralone:
which comprises: contacting a compound of formula (I) with a microorganism, or an enzyme reduction system capable of accomplishing the subject reduction comprising an enzyme derived from said microorganism and a co-factor for said enzyme, and incubating the resulting mixture under conditions sufficient to yield the (4R) tetralol of formula (II) and to leave substantially unreacted the (4S) tetralone of formula (V) or "chiral tetralone." The chiral tetralone can be used in the synthesis of sertraline. The subject process further optionally comprises the separation of the (4S) tetralone of formula (V) from the (4R) tetralol of formula (II). The (4R) tetralol can be recycled to produce the compound of formula (I) and the subject process repeated to result in even more of the desired (4S) tetralone of formula (V).
本发明涉及对外消旋四氢
萘酮进行下述立体选择性微
生物还原的工艺:
其中包括:将式(I)化合物与微
生物或能够完成所述还原的酶还原系统接触,该酶还原系统包括衍生自所述微
生物的酶和所述酶的辅助因子,并在足以产生式(II)的(4R)四
萘酚和基本上不反应的式(V)的(4S)四
萘酮或 "手性四
萘酮 "的条件下培养所得混合物。手性四
萘酮可用于合成
舍曲林。该主题工艺还可选择包括将式(V)的(4S)四
萘酮与式(II)的(4R)四
萘醇分离。(4R)四
萘酚可以回收利用来生产式(I)化合物,并重复上述工艺以获得更多所需的式(V)(4S)四
萘酮。