INTERMEDIATE FOR USE IN SYNTHESIZING PAROXETINE, PREPARATION METHOD FOR THE INTERMEDIATE, AND USES THEREOF
申请人:Zhejiang Jiuzhou Pharmaceutical Co., Ltd
公开号:EP3199526A1
公开(公告)日:2017-08-02
A paroxetine intermediate, a method for preparing the same, and uses thereof are provided. Specifically, the method includes: reacting a compound of formula I below with a compound of formula II in the presence of an organic base under the catalysis of a complex formed from a chiral amine oxide L and a rare-earth metal compound Ln(OTf)3 to prepare a compound of formula III below: wherein R1 is alkyl, phenyl or benzyl; R2, R3, R4 are each independently C1-C6 alkyl or C6-C10 aryl; the chiral amine oxide L has the following structure: wherein n = 1,2; and R = Ph-, 2,6-Me2C6H3-, 2,6-Et2C6H3-, 2,6-iPr2C6H3-, Ph2CH-.
本发明提供了一种帕罗西汀中间体、其制备方法及其用途。具体而言,该方法包括:在有机碱存在下,在手性氧化胺 L 和稀土金属化合物 Ln(OTf)3 形成的配合物催化下,使下式 I 的化合物与下式 II 的化合物反应,制备下式 III 的化合物:其中 R1 是烷基、苯基或苄基;R2、R3、R4 各自独立地是 C1-C6 烷基或 C6-C10 芳基;手性氧化胺 L 具有以下结构:其中 n = 1、2;R = Ph-、2,6-Me2C6H3-、2,6-Et2C6H3-、2,6-iPr2C6H3-、Ph2CH-。