The object of the present invention is to produce an optically active N-substituted azetidine-2-carboxylic acid by an efficient, expedient and commercially profitable process.
The present invention provides a production method of an optically active N-substituted azetidine-2-carboxylic acid which comprises cyclizing an optically active 4-substituted amino-2-halobutyric acid in the presence of a base.
本发明的目的是通过一种高效、快捷且商业利润丰厚的方法生产光学活性的N-取代的氮杂环-2-
羧酸。本发明提供了一种生产光学活性的N-取代的氮杂环-2-
羧酸的方法,其包括在碱的存在下使光学活性的4-取代
氨基-2-卤
丙酸环化。