The present invention relates to a production method of (R)-3-hydroxy-3-(2-phenylethyl)hexanoic acid which comprises optical resolution of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid with an optically active amine of the formula (VIII)
1
wherein R
2
is 3,4-dimethoxyphenyl or 2-chlorophenyl. According to the present invention, (R)-3-hydroxy-3-(2-phenylethyl)hexanoic acid useful as a starting material of a pharmaceutical agent can be efficiently produced with a high optical purity and a relatively high total yield.
本发明涉及一种(R)-3-羟基-3-(2-苯乙基)
己酸的生产方法,其包括使用式(VIII)中的手性胺对拉丁体3-羟基-3-(2-苯乙基)
己酸进行光学分辨。其中,R2为3,4-二
甲氧基苯基或2-
氯苯基。根据本发明,可以高效地生产用作制药剂起始物的(R)-3-羟基-3-(2-苯乙基)
己酸,其具有高光学纯度和相对较高的总收率。