A benzylamine derivative has a structure represented by the following formula (1):
In a method for optical resolution of the benzylamine derivative, optically active mandelic acid is used as an optical resolving agent. In an optical resolution step in a production method of the optically active benzylamine derivative, an optically active (S)-benzylamine derivative represented by the formula (3) is precipitated as (S)-mandelic acid salt from a solution containing the benzylamine derivative and (S)-mandelic acid:
wherein Ar represents an aryl group that has 6 to 15 carbon atoms and may have a substituent, and *1 represents an asymmetric carbon atom.
一种苄基胺衍
生物具有以下式子(1)所示的结构:在一种光学分辨苄基胺衍
生物的方法中,使用光学活性的
苯乙酸作为光学分辨剂。在制备光学活性苄基胺衍
生物的生产方法中的光学分辨步骤中,从含有苄基胺衍
生物和(S)-
苯乙酸的溶液中沉淀出以下式子(3)所示的光学活性(S)-苄基胺衍
生物的(S)-
苯乙酸盐:其中,Ar代表具有6到15个碳原子的芳基基团,可能有取代基,*1代表不对称碳原子。