发明授权
- 专利标题： Thiazole derivatives
- 专利标题（中）： 噻唑衍生物
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申请号： US568921申请日： 1984-01-06
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公开(公告)号： US4695639A公开(公告)日： 1987-09-22
- 发明人: Kunio Takanohashi , Tsuneaki Yoshida , Shoichiro Fujii
- 申请人： Kunio Takanohashi , Tsuneaki Yoshida , Shoichiro Fujii
- 申请人地址： JPX Osaka
- 专利权人： Takeda Chemical Industries, Ltd.
- 当前专利权人： Takeda Chemical Industries, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： WOXPCT/JP83/00003 19830107; WOXPCT/JP83/00135 19830502
- 主分类号： C07D277/20
- IPC分类号： C07D277/20 ; C07D277/40 ; C07D277/74 ; C07D277/76 ; C07D417/12 ; C07D501/36
摘要：
A novel aminothiazoleacetic acid derivative which is an advantageous synthetic intermediate for .beta.-lactam antibiotics, and its production method and use. Starting with diketene, the production method comprises the following squence of steps. ##STR1## (In the above formulas, R is lower alkyl or phenyl; R.sub.1 and R.sub.2 each are hydrogen or lower alkyl; X and X' each are halogen; W is S or SO.sub.2 ; and W' is OH or ##STR2##
公开/授权文献
- US3989270A Hitch construction 公开/授权日：1976-11-02