发明名称 |
PURIFICATION METHOD OF N-(1(S)-ETHOXYCARBONYL-3-PHENYLPROPYL)-L-ALANINE |
摘要 |
<p>The present invention is to provide a purification method of obtaining N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine of high quality in good yield with high productivity, which is accordingly suited for commercial scale application. An impurity-contaminated N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine is crystallized from a mixed solvent of alcohol and water in a volume ratio of alcohol/water being 1 to 20 to remove a contaminating impurity into a mother liquor and give crystals of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine.</p> |
申请公布号 |
EP1284957(B1) |
申请公布日期 |
2008.05.07 |
申请号 |
EP20020705315 |
申请日期 |
2002.03.19 |
申请人 |
KANEKA CORPORATION |
发明人 |
MATSUMOTO, AKIRA;NOMURA, MICHIO;KOGAME, YOSHIKAZU;UEDA, YASUYOSHI |
分类号 |
C07C229/36;C07C227/42;C07C229/34 |
主分类号 |
C07C229/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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