Cephalosporin derivatives
    2.
    发明授权
    Cephalosporin derivatives 失效
    CEPHALOSPORIN衍生物

    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

    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。