发明授权
US4128714A Process for the preparation of
7-acylamida-3-halo-3-alkyl-cepham-4-carboxylic acids and esters
失效
制备7-酰基亚氨基-3-卤代-3-烷基 - 头孢烯-4-羧酸和酯的方法
- 专利标题： Process for the preparation of 7-acylamida-3-halo-3-alkyl-cepham-4-carboxylic acids and esters
- 专利标题（中）： 制备7-酰基亚氨基-3-卤代-3-烷基 - 头孢烯-4-羧酸和酯的方法
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申请号： US654624申请日： 1976-02-02
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公开(公告)号： US4128714A公开(公告)日： 1978-12-05
- 发明人: Masao Koyama , Shigeo Seki
- 申请人： Masao Koyama , Shigeo Seki
- 申请人地址： JPX Tokyo
- 专利权人： Meiji Seika Kaisha Ltd.
- 当前专利权人： Meiji Seika Kaisha Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX47-36850 19720414
- 主分类号： C07D501/10
- IPC分类号： C07D501/10
摘要：
A novel ester of 7-acylamido-3-methyl-cepham-4-carboxylic acid derivative and a process for the preparation thereof which comprises reacting penicillin sulfoxide ester with the metal halide, and a novel 7-acylamido-3-methyl-cepham-4-carboxylic acid derivative and a process for the preparation thereof which comprises reacting penicillin sulfoxide ester with the metal halide and decomposing the resultant in a reductive atmosphere.
公开/授权文献
- US5749969A Fluid dispensing system 公开/授权日：1998-05-12
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