发明授权
US4717767A 7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporins
失效
7-氨基-3-(吡嗪基甲基)或(哒嗪基甲基) - 头孢菌素
- 专利标题: 7-amino-3-(pyrazinylmethyl) or (pyridazinylmethyl)-cephalosporins
- 专利标题(中): 7-氨基-3-(吡嗪基甲基)或(哒嗪基甲基) - 头孢菌素
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申请号: US860317申请日: 1986-07-22
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公开(公告)号: US4717767A公开(公告)日: 1988-01-05
- 发明人: Hiroshi Sadaki , Hiroyuki Imaizumi , Takashi Nagai , Kenji Takeda , Isao Myokan , Takihiro Inaba , Yasuo Watanabe , Yoshikazu Fukuoka , Shinzaburo Minami , Isamu Saikawa
- 申请人: Hiroshi Sadaki , Hiroyuki Imaizumi , Takashi Nagai , Kenji Takeda , Isao Myokan , Takihiro Inaba , Yasuo Watanabe , Yoshikazu Fukuoka , Shinzaburo Minami , Isamu Saikawa
- 申请人地址: JPX Tokyo
- 专利权人: Toyama Chemical Co., Ltd.
- 当前专利权人: Toyama Chemical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX57-200382 19821117; JPX58-67871 19830419
- 主分类号: C07D241/18
- IPC分类号: C07D241/18 ; C07D405/04 ; C07D501/18 ; C07D501/46
摘要:
This invention relates to a 7-amino-3-(pyrazinylmethyl)- or (pyridazinylmethyl)-cephalosporins of the formula: ##STR1## wherein R.sup.1 represents a hydrogen atom or a carboxyl-protecting group; R.sup.2 represents a group of the formula: ##STR2## in which R.sup.6 represents a hydrogen atom, a C.sub.1-5 alkyl group or a di-C.sub.1-5 alkylamino group; R.sup.13 represents a C.sub.1-5 alkyl group; and R.sup.28 represents an amino group.