发明名称 |
NYTT FORFARANDE FOR FRAMSTELLNING AV CEFALOSPORINDERIVAT |
摘要 |
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. |
申请公布号 |
SE435182(B) |
申请公布日期 |
1984.09.10 |
申请号 |
SE19790007455 |
申请日期 |
1979.09.07 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES LTD |
发明人 |
S * TSUSHIMA;M * SENDAI;M * SHIRAISHI |
分类号 |
A61K9/02;A61K31/43;C07D501/04;C07D501/16;C07D501/18;C07D501/26;(IPC1-7):07D501/04;07D501/20 |
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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