发明授权
- 专利标题: Process for the preparation of substituted isoflavone derivative
- 专利标题(中): 取代异黄酮衍生物的制备方法
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申请号: US778927申请日: 1991-12-05
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公开(公告)号: US5247102A公开(公告)日: 1993-09-21
- 发明人: Tamas Kallay , Gyorgy Lanyi , Laszlo Ledniczky , Lajos Imrei , Gyorgy Hoffmann , Maria Sziladi , Eva Somfai , Tibor Montay
- 申请人: Tamas Kallay , Gyorgy Lanyi , Laszlo Ledniczky , Lajos Imrei , Gyorgy Hoffmann , Maria Sziladi , Eva Somfai , Tibor Montay
- 申请人地址: HUX Budapest
- 专利权人: Chinoin Gyogyszer- es Vegyeszeti Termekek Gyara Rt.
- 当前专利权人: Chinoin Gyogyszer- es Vegyeszeti Termekek Gyara Rt.
- 当前专利权人地址: HUX Budapest
- 主分类号: A61K31/35
- IPC分类号: A61K31/35 ; A61K31/352 ; A61P3/02 ; A61P43/00 ; C07D311/36
摘要:
The invention relates to a process for the preparation of pure isoflavone derivatives of the general formula (I), ##STR1## wherein R stands for hydrogen or isopropyl,R.sup.2 and R.sup.3 stand for hydrogen or C.sub.1-2 alkoxy by reacting a rezorcinol-derivative of the general formula (III) ##STR2## wherein R.sup.2 and R.sup.3 are as given above with ethyl-orthoformiate of the formula (IV)(C.sub.2 H.sub.5 O).sub.3l CH (IV)in the presence of a base and optionally by alkylating the product.
公开/授权文献
- USD299541S House 公开/授权日:1989-01-24