发明名称 |
PROCESS FOR PRODUCING 7-.alpha.-METHOXYCEPHALOSPORINS |
摘要 |
<p>An improved process for producing a 7.alpha.-methoxy-cephalo-sporin of the formula wherein R1 and A are as defined hereinafter, or an ester, salt or amide thereof, which comprises reacting a compound of the formula wherein R2 is as defined hereinafter, or an ester, salt or amide thereof, with a halogenating agent in the presence of methanol and an alkali metal salt of methanol and reacting the resulting corresponding 7.alpha.-methoxy compound or an ester, salt or amide thereof, with a thiol of the formula R1--SH or a salt thereof.</p> |
申请公布号 |
CA1152980(A) |
申请公布日期 |
1983.08.30 |
申请号 |
CA19800358275 |
申请日期 |
1980.08.14 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
MASAI, NARUHITO;TOBIKI, HISAO |
分类号 |
C07D501/04;A61K;A61K31/545;A61K31/546;A61P31/04;C07D501/20;C07D501/46;C07D501/57;(IPC1-7):C07D501/57 |
主分类号 |
C07D501/04 |
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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