| 发明名称 |
UN PROCEDIMIENTO PARA PREPARAR COMPUESTOS DE 3-ACILOXIMETIL-CEFEM. |
| 摘要 |
<p>Novel 3-acyloxymethyl-cephem compounds of the formula: <IMAGE> wherein R1 is hydrogen or an acyl group; W is acetonyl, or a group represented by -X-COOH or -X-OH (X is an organic residue) or salts thereof were found to be useful as starting materials for preparing cephalosporins of the formula: <IMAGE> wherein R3 stands for a residue of a nucleophilic compound and R1 has the same meaning as above.</p> |
| 申请公布号 |
ES445348(A1) |
申请公布日期 |
1977.10.16 |
| 申请号 |
ES19480004453 |
申请日期 |
1976.02.20 |
| 申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD. |
发明人 |
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| 分类号 |
A61K9/02;A61K31/43;C07D501/04;C07D501/16;C07D501/18;C07D501/26;(IPC1-7):07D/;61K/ |
主分类号 |
A61K9/02 |
| 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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