发明名称 |
Process for the purification of a 3-cephem-4-carboxylic acid derivative |
摘要 |
The invention relates to a new process for the depletion of 7-amino-3-[(E)-1-propen-1-yl]-3-cephem-4-carboxylic acid in mixtures of 7-amino-3-[(Z)-1-propen-1-yl]-3-cephem-4-carboxylic acid and 7-amino-3-[(E)-1-propen-1-yl]-3-cephem-4 carboxylic acid, by means of the crystalline hydrochloride or a metal or amine salt of 7-amino-3-[(Z/E)-1-propen-1-yl]-3-cephem-4-carboxylic acid or by adsorption chromatography.
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申请公布号 |
US5869648(A) |
申请公布日期 |
1999.02.09 |
申请号 |
US19950466306 |
申请日期 |
1995.06.06 |
申请人 |
BIOCHEMIE GESELLSCHAFT M.B.H. |
发明人 |
LUDESCHER, JOHANNES;PRAGER, BERNHARD;WOLF, SIEGFRIED |
分类号 |
C07D501/04;C07D501/00;C07D501/06;C07D501/12;C07D501/18;C07D501/22;(IPC1-7):C07D501/22 |
主分类号 |
C07D501/04 |
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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