| 发明名称 |
PARTICOLARE ESTERE DI CEFEM,PROCEDIMENTO PER PREPARARLO E METODO PER RIMUOVERE DAL MEDESIMO IL GRUPPO PROTETTIVO |
| 摘要 |
<p>A novel ester of a cephem compound having a carboxyl group at the 4-position in the nucleus; a process for preparing the same by reacting a cephem carboxylic acid or its salt with a halogenide; and a method for removing the protective group for the carboxyl group in the nucleus of a cephem compound by contacting it with an alcohol, or with an organic solvent in the presence of a Lewis acid.</p> |
| 申请公布号 |
IT1096261(B) |
申请公布日期 |
1985.08.26 |
| 申请号 |
IT19780022980 |
申请日期 |
1978.05.03 |
| 申请人 |
MEIJI SEIKA KAISHA LTD |
发明人 |
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| 分类号 |
A61K;C07D501/04;C07D501/20;C07D501/22;C07D501/26;C07D501/34;(IPC1-7):A61K/ |
主分类号 |
A61K |
| 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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