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公开(公告)号:US4898822A
公开(公告)日:1990-02-06
申请号:US846436
申请日:1986-03-31
申请人: Masanori Asada , Shigeki Hamaguchi , Hidetoshi Katsuki , Yoshio Nakamura , Hideyuki Takahashi , Kenji Takahara , Yoshio Shimada , Takehisa Ohashi , Kiyoshi Watanabe
发明人: Masanori Asada , Shigeki Hamaguchi , Hidetoshi Katsuki , Yoshio Nakamura , Hideyuki Takahashi , Kenji Takahara , Yoshio Shimada , Takehisa Ohashi , Kiyoshi Watanabe
CPC分类号: C12P17/10 , C12P41/005 , Y10S435/83 , Y10S435/839 , Y10S435/843 , Y10S435/874 , Y10S435/897 , Y10S435/911 , Y10S435/921 , Y10S435/925
摘要: A process for preparing optically active indoline-2-carboxylic acid by an optical resolution, which comprises subjecting a racemic ester of (R,S)-indoline-2-carboxylic acid having the general formula [(R,S)-I] to the action of an enzyme or a microorganism having a stereo-selective esterase activity, which is capable of asymmetrically hydrolyzing the racemic ester [(R,S)-I] to give optically active indoline-2-carboxylic acid having the formula [II*] so as to produce the hydrolysis product, i.e. optically active indoline-2-carboxylic acid [II*] and an unreacted optically active ester of indoline-2-carboxylic acid having the general formula [I*], isolating each optically active form, and further, if necessary, hydrolyzing the obtained optically active ester [I*] to give an optical antipode of the acid [II*].According to the process of the present invention, optically active indoline-2-carboxylic acid with a high optical purity can be prepared in a simple process with a good yield.
摘要翻译: 通过光学拆分制备光学活性二氢吲哚-2-羧酸的方法,其包括使具有通式[(R,S)-I]的(R,S) - 二氢吲哚-2-羧酸的外消旋酯与 具有立体选择性酯酶活性的酶或微生物的作用,其能够不对称地水解外消旋酯[(R,S)-I],得到具有式[II *]的光学活性二氢吲哚-2-羧酸, ]以产生水解产物,即具有通式[I *]的光学活性二氢吲哚-2-羧酸[II *]和未反应的二氢吲哚-2-羧酸的光学活性酯,分离每种光学活性形式, 此外,如果需要,水解得到的光学活性酯[I *],得到酸[II *]的光学对映体。 根据本发明的方法,可以以简单的方法制备具有高光学纯度的光学活性二氢吲哚-2-羧酸,产率高。