发明公开
EP0355617A1 Process for the manufacture of benzopyran derivatives
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Verfahren zur Herstellung von Benzopyran-Derivaten。
- 专利标题: Process for the manufacture of benzopyran derivatives
- 专利标题(中): Verfahren zur Herstellung von Benzopyran-Derivaten。
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申请号: EP89114880.1申请日: 1989-08-11
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公开(公告)号: EP0355617A1公开(公告)日: 1990-02-28
- 发明人: Manchand, Percy Sarwood , Micheli, Robert Angelo
- 申请人: F. HOFFMANN-LA ROCHE AG
- 申请人地址: Postfach 3255 4002 Basel CH
- 专利权人: F. HOFFMANN-LA ROCHE AG
- 当前专利权人: F. HOFFMANN-LA ROCHE AG
- 当前专利权人地址: Postfach 3255 4002 Basel CH
- 代理机构: Kellenberger, Marcus, Dr.
- 优先权: US235129 19880823
- 主分类号: C07D311/74
- IPC分类号: C07D311/74
摘要:
The invention is directed to a process and intermediates for the preparation of benzopyrans such as racemic-6-acetyl-7-[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyloxy]-3,4-dihydro-2H-1-benzopyran-2-carboxylic acid.
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