发明名称 |
CRYSTALLINE ACID SALTS OF CEFDINIR AND PROCESS FOR PREPARING CEFDINIR USING SAME |
摘要 |
High purity cefdinir is prepared in a high yield by a process comprising the steps of: treating a crystalline salt of a cefdinir intermediate with a formic acid-sulfuric acid mixture or a formic acid-methanesulfonic acid mixture to obtain a crystalline salt of cefdinir and reacting the crystalline salt with a base in a solvent. |
申请公布号 |
EP1392703(A4) |
申请公布日期 |
2004.10.27 |
申请号 |
EP20020730990 |
申请日期 |
2002.06.05 |
申请人 |
HANMI PHARM. CO., LTD. |
发明人 |
LEE, GWAN SUN;CHANG, YOUNG KIL;KIM, HONG SUN;PARK, CHUL HUYN;PARK, GHA SEUNG;KIM, CHEOL KYUNG |
分类号 |
C07B61/00;C07D501/00;C07D501/14;C07D501/22 |
主分类号 |
C07B61/00 |
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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