| 发明名称 |
PROCESS FOR PREPARING CEPHALOSPORIN DERIVATIVES |
| 摘要 |
Hemiacid salts of cepham I were prepd., wherein 1 mol. I is combined to 0.5 mol. HCl or HBr. Thus, aq. I Na salt was treated dropwise with 10% aq. HCl at 25.5≦̸C to give cryst. I.0.5 HCl. The salts are stable against heat, light, acids, alkalids, etc.
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| 申请公布号 |
KR880000181(B1) |
申请公布日期 |
1988.03.12 |
| 申请号 |
KR19790004155 |
申请日期 |
1979.11.27 |
| 申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD. |
发明人 |
HIDEAKI NATSUGARI;IWAO, MIKAMI;MICHIHIKO, OCHIAI |
| 分类号 |
C07D501/36;(IPC1-7):C07D501/36 |
主分类号 |
C07D501/36 |
| 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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