保存成功
保存失败
公开(公告)号:EP0355617A1
公开(公告)日:1990-02-28
申请号:EP89114880.1
申请日:1989-08-11
申请人: F. HOFFMANN-LA ROCHE AG
发明人: Manchand, Percy Sarwood , Micheli, Robert Angelo
IPC分类号: C07D311/74
CPC分类号: C07D311/66 , C07D311/58
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.
摘要翻译: 本发明涉及制备苯并吡喃的方法和中间体,例如外消旋-6-乙酰基-7- [5-(4-乙酰基-3-羟基-2-丙基苯氧基)戊氧基] -3,4-二氢-2H -1-苯并吡喃-2-羧酸。