The present invention provides a production method capable of affording an optically active diphenylalanine compound conveniently in a good yield. Specifically, a diphenylalanine compound represented by the formula (1) is reacted with an optically active amine compound represented by the formula (2) in the presence of an organic solvent to give a diastereomeric salt represented by the formula (5) and the diastereomeric salt is treated under acidic conditions to give an optically active diphenylalanine compound represented by the formula (3):
wherein each symbol is as defined in the specification.
本发明提供了一种生产方法,能够以良好的收率方便地获得光学活性二苯丙
氨酸化合物。具体而言,在有机溶剂存在下,将式(1)代表的二苯丙
氨酸化合物与式(2)代表的光学活性胺化合物反应,得到式(5)代表的非对映异构盐,然后在酸性条件下处理非对映异构盐,得到式(3)代表的光学活性二苯丙
氨酸化合物:
其中各符号如说明书中所定义。