发明授权
- 专利标题： Process for preparing 3-exo-methylenecepham derivatives
- 专利标题（中）： 3-异喹喔啉衍生物的制备方法
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申请号： US406568申请日： 1982-08-09
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公开(公告)号： US4499265A公开(公告)日： 1985-02-12
- 发明人: Sigeru Torii , Hideo Tanaka , Junzo Nokami , Takashi Shiroi , Norio Saito , Michio Sasaoka
- 申请人： Sigeru Torii , Hideo Tanaka , Junzo Nokami , Takashi Shiroi , Norio Saito , Michio Sasaoka
- 申请人地址： JPX Kaisha
- 专利权人： Otsuka Kagaku Yakuhin Kabushiki Kaisha
- 当前专利权人： Otsuka Kagaku Yakuhin Kabushiki Kaisha
- 当前专利权人地址： JPX Kaisha
- 优先权： JPX56-131039 19810820
- 主分类号： C07D501/08
- IPC分类号： C07D501/08 ; C07D501/14 ; C07D513/04
摘要：
This invention provides a process for preparing a 3-exo-methylenecepham derivative represented by the formula ##STR1## wherein R.sup.1 represents an aralkyl or aryloxymethyl group both of which may be substituted on the aromatic ring, and R.sup.2 represents a carboxyl-protecting group, the process comprising subjecting a compound represented by the formula ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, to a cyclization reaction in an acidic water-containing solvent.
公开/授权文献
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