发明授权
- 专利标题： Cyclopentenones, process for preparing the same, and the use thereof
- 专利标题（中）： 环戊烯酮，其制备方法及其用途
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申请号： US230868申请日： 1999-02-02
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公开(公告)号： US6087401A公开(公告)日： 2000-07-11
- 发明人: Nobuto Koyama , Hiroaki Sagawa , Eiji Kobayashi , Tatsuji Enoki , Hua-Kang Wu , Eiji Nishiyama , Katsushige Ikai , Ikunoshin Kato
- 申请人： Nobuto Koyama , Hiroaki Sagawa , Eiji Kobayashi , Tatsuji Enoki , Hua-Kang Wu , Eiji Nishiyama , Katsushige Ikai , Ikunoshin Kato
- 申请人地址： JPX Kyoto
- 专利权人： Takara Shuzo Co., Ltd.
- 当前专利权人： Takara Shuzo Co., Ltd.
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX8-275231 19960927; JPX8-325900 19961122; JPX9-055434 19970225; JPX9-092866 19970328; JPX9-116045 19970421
- 主分类号： A23L1/30
- IPC分类号： A23L1/30 ; A61K8/35 ; A61K8/60 ; A61K31/12 ; A61Q5/00 ; A61Q11/00 ; A61Q19/00 ; C07C45/67 ; C07C49/707 ; C07H7/033
摘要：
There is disclosed a method of manufacturing 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [1] which is characterized in that at least one substance selected from the following (a), (b) and (c) is heated.(a): uronic acid or uronic acid derivative(s);(b): a saccharide compound which contains uronic acid and/or uronic acid derivative(s); and(c): a substance containing a saccharide compound which contains uronic acid and/or uronic acid derivative(s). ##STR1##
公开/授权文献
- US4993338A Stitch switching mechanism for a chain stitch sewing machine 公开/授权日：1991-02-19