Production methods of thiazoline compounds and optically active alpha-alkylcysteine
申请人:Ajinomoto Co., Inc.
公开号:EP1721902A1
公开(公告)日:2006-11-15
An optically active compound (I) is reacted with compound (II) to give optically active compound (III), which is subjected to alkali hydrolysis and deprotection when R1 is alkyl:
wherein X is a chlorine atom and the like, and R1, R2 and R3 are each an alkyl group and the like, or
racemic compound (I) is reacted with compound (II) to give racemic compound (III), which is asymmetrically hydrolyzed by an enzyme to perform optical resolution, and subjected to alkali hydrolysis and deprotection:
wherein X is a chlorine atom and the like and R1, R2 and R3 are each an alkyl group and the like.
一个具有光学活性的化合物(I)与化合物(II)反应,得到具有光学活性的化合物(III),当R1为烷基时,经过碱水解和去保护:
其中X为氯原子等,R1、R2和R3分别为烷基基团等,或者
外消旋化合物(I)与化合物(II)反应,得到外消旋化合物(III),通过酶不对称水解进行光学分辨,并经过碱水解和去保护:
其中X为氯原子等,R1、R2和R3分别为烷基基团等。