发明名称 |
METHOD OF PRODUCING 7-ALPHA-AMINO ACETAMIDO CEPHALOSPORANIC ACID |
摘要 |
<p>1473090 Cephalosporins LILLY INDUSTRIES Ltd 18 July 1974 [19 July 1973] 34337/73 Heading C2C A 7 -α- aminoacetamido - cephalosporin - 4- carboxylic acid is made by reacting a 7-aminocephalosporin-4-carboxylic acid ester with a reactive derivative of anα-aminoacetic acid, in which the amino group is protected by forming an enamine with a #-dicarbonyl compound; removing the amino protecting group from the product; adding sufficient hydrazine or its derivative (e.g. semicarbazide) to prevent reaction of the liberated dicarbonyl compound; and, if desired de-esterifying the resulting 7-α- aminoacetamido compound.</p> |
申请公布号 |
CS188188(B2) |
申请公布日期 |
1979.02.28 |
申请号 |
CS19740004896 |
申请日期 |
1974.07.10 |
申请人 |
LILLY INDUSTRIES LIMITED,GB |
发明人 |
DAVISON,MICHAEL,GB;FRANKHAM,DAVID B.,GB;SPENCE,THOMAS W.,GB |
分类号 |
C07D501/00;A61K;A61K31/545;C07D;C07D499/64;C07D501/02;C07D501/04;C07D501/06;C07D501/12;C07D501/20;C07D501/22;C07D501/28;C07D501/36;C07D501/60;(IPC1-7):C07D501/22 |
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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