发明名称 |
Simplified process of forming crystalline ceftazidime pentahydrate |
摘要 |
Ceftazidime pentahydrate in crystalline form is provided in a one-step process comprising acidic removal of protecting groups from an amino-protected and carboxy-protected ceftazidime, separation of aqueous phase after addition of a water-immiscible organic solvent, and precipitation of pentahydrate by adjusting pH of aqueous phase from about 3.5 to about 4.5.
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申请公布号 |
US4616080(A) |
申请公布日期 |
1986.10.07 |
申请号 |
US19840627321 |
申请日期 |
1984.07.02 |
申请人 |
ELI LILLY AND COMPANY |
发明人 |
CHOU, TA-SEN;LAKIN, ROBERT E. |
分类号 |
C07D501/00;A61K31/545;C07D;C07D403/00;C07D501/46;C07D501/56;(IPC1-7):C07D501/46 |
主分类号 |
C07D501/00 |
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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