申请人:AJINOMOTO CO., INC.
公开号:US20020087014A1
公开(公告)日:2002-07-04
The present invention provides a production method including adding water to a solution of (2R,3S)-3-tert-butoxycarbonylamino-1,2-epoxy-4-phenylbutane ((2R,3S)-epoxide compound) or (2S,3R)-3-tert-butoxycarbonylamino-1,2-epoxy-4-phenylbutane ((2S,3R)-epoxide compound) in a polar solvent to allow crystallization, whereby to produce crystals of the (2R,3S)-epoxide compound or the (2S,3R)-epoxide compound conveniently in a high yield by an industrial production method without requiring an extremely low temperature.
本发明提供了一种生产方法,包括向(2R,3S)-3-叔丁氧羰基氨基-1,2-环氧-4-苯基丁烷((2R,3S)-环氧化合物)或(2S,3R)-3-叔丁氧羰基氨基-1,2-环氧-4-苯基丁烷((2S、3R)-环氧化物化合物)在极性溶剂中结晶,从而通过工业化生产方法方便地生产出高产率的 (2R,3S)- 环氧化物化合物或 (2S,3R)-环氧化物化合物晶体,而不需要极低的温度。