发明名称 PROCEDIMIENTO PARA REEMPLAZAR EL SUBSTITUYENTE 7-ACILO DE UN COMPUESTO DE CEFALOSPORINA
摘要 Process and intermediate products useful in the preparation of cephalosporin compounds having a substituent at the 7-position in place of hydrogen are provided. The new cephalosporin compounds are active against various gram-negative and gram-positive organisms.
申请公布号 AR197864(A1) 申请公布日期 1974.05.15
申请号 AR19710236155 申请日期 1971.06.14
申请人 MERCK & CO INC 发明人
分类号 A61K31/545;A61K31/546;A61K31/655;A61P31/04;C07D;C07D501/00;C07D501/04;C07D501/20;C07D501/22;C07D501/24;C07D501/26;C07D501/34;C07D501/57;C07D501/60;H04H 主分类号 A61K31/545
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