A process for preparing optically active 3-hydroxypyrrolidine derivatives useful as intermediates represented by formula (III): ##STR1## wherein Q represents a substituted or unsubstituted phenyl group; and * indicates an asymmetric carbon atom, comprising reacting an optically active 4-halo-3-hydroxybutane derivative represented by formula (I): ##STR2## wherein * is as defined above; R.sup.1 represents a lower alkyl group or a substituted or unsubstituted phenyl group; and X represents a halogen atom, with a benzylamine derivative represented by formula (II): H.sub.2 NCH.sub.2 Q (II) wherein Q is as defined above, is disclosed. The starting compound (I) is easily available through chemical synthesis. Any complicated procedure or use of an expensive reagent is not required.
本发明涉及一种制备光学活性的
3-羟基吡咯烷衍
生物的方法,该衍
生物可用作公式(III)所表示的中间体:##STR1##
其中Q代表取代或未取代的苯基;*表示不对称碳原子,包括将公式(I)所表示的光学活性4-卤代-3-羟基
丁烷衍
生物与公式(II)所表示的苄基胺衍
生物反应,公式(I)如下:##STR2##
其中*的定义如上;R1代表较低的烷基或取代或未取代的苯基;X代表卤素原子,公式(II)中Q的定义如上。起始化合物(I)可以通过
化学合成轻松获得,不需要任何复杂的步骤或昂贵的试剂。