发明授权
US5391810A Method of crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester
失效
α-L-天冬氨酰-L-苯丙氨酸甲酯的结晶方法
- 专利标题： Method of crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester
- 专利标题（中）： α-L-天冬氨酰-L-苯丙氨酸甲酯的结晶方法
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申请号： US121569申请日： 1993-09-16
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公开(公告)号： US5391810A公开(公告)日： 1995-02-21
- 发明人: So Abe , Shinichi Kishimoto , Toshihisa Kato , Hideo Takeda
- 申请人： So Abe , Shinichi Kishimoto , Toshihisa Kato , Hideo Takeda
- 申请人地址： JPX Tokyo
- 专利权人： Ajinomoto Co., Inc.
- 当前专利权人： Ajinomoto Co., Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-221336 19910523; JPX4-102917 19920422
- 主分类号： C07K5/072
- IPC分类号： C07K5/072 ; C07K5/075 ; C07C101/02
摘要：
In crystallizing .alpha.-APM from a water solution or a mixed solvent solution of water and a lower alcohol in a crystallizer, the pressure in the crystallizer is held at not higher than atmospheric pressure, a water or water/alcohol mixed solution of .alpha.-APM is fed into the crystallizer with stirring so that the solvent is vaporized, and the crystallization solution is cooled and crystallized by the latent heat of vaporization or is heated so as to prevent supercooling.
公开/授权文献
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