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公开(公告)号:US3658649A
公开(公告)日:1972-04-25
申请号:US3658649D
申请日:1969-08-01
申请人: GLAXO LAB LTD
IPC分类号: C07D501/04 , C07D501/12 , C07D501/18 , C07D501/20 , C07D501/24 , C12P35/00 , C12D9/00
CPC分类号: C12P35/00 , Y10S435/911 , Y10S435/913 , Y10S435/915 , Y10S435/919
摘要: A process is disclosed for the preparation of a 7 Beta -(4carboxybutanamide) ceph-3-3em-4-carboxylic acid or a 7 Beta -(5carboxy-5-oxopentamido) ceph-3-em-4-carboxylic acid by subjecting a 7 Beta -(D-5-amino-5-carboxypentamido) ceph-2-em-4-carboxylic acid to the action of a cell-free fungal D-amino acid oxidase. The modified cephalosporin compounds produced exhibit antimicrobial activity and are useful as presursors in the synthesis of 7-aminocephalosporanic acid and 7 Beta -acylamido analogues of cephalosporin C.
摘要翻译: 公开了制备7β-(4-羧基丁酰胺)头孢-3-甲基-4-羧酸或7β-(5-羧基-5-氧代戊酰氨基)头孢-3-烯-4-羧酸的方法 通过使7β-(D-5-氨基-5-羧戊酰氨基)肾上腺素-2-羧酸受到无细胞真菌D-氨基酸氧化酶的作用。 产生的改性头孢菌素化合物表现出抗微生物活性,可用作合成7-氨基头孢菌酸和头孢菌素C的7个β-酰氨基酰氨基类似物的预先使用。