发明名称 |
Preparation of penicillanic acids |
摘要 |
<p>6-(1-Aminocycloalkylcarboxamido)penicillanic acids: (where n = 2 or 3 and m = 1/2 to 0) are prepared by contacting the hydrated form of the compound with methanol as a dehydration agent, at -10 degrees C to reflux temperature of the solvent with up to 75 % water or, if water merely present, at -10 to 35 degrees C and separating and drying the insoluble crystals.</p> |
申请公布号 |
CH529168(A) |
申请公布日期 |
1972.10.15 |
申请号 |
CH19690009062 |
申请日期 |
1969.06.13 |
申请人 |
AMERICAN HOME PRODUCTS CORPORATION |
发明人 |
EUGENE CLARK,DONALD;HOWARD GRANT,NORMAN;EUGENE ALBURN,HARVEY |
分类号 |
A61K31/43;C07D499/74;(IPC1-7):C07D99/16 |
主分类号 |
A61K31/43 |
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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