Process for the preparation of pyrazolopyrimidinones
    4.
    发明授权
    Process for the preparation of pyrazolopyrimidinones 失效
    吡唑并嘧啶酮的制备方法

    公开(公告)号:US06667398B2

    公开(公告)日:2003-12-23

    申请号:US09886269

    申请日:2001-06-21

    IPC分类号: C07D48704

    摘要: There is provided a process for the production a compound of general formula I: wherein A, R1, R2, R3 and R4 have meanings given in the description, which process comprises the reaction of a compound of formula II, wherein Rx is a group substitutable by an aminopyrazole, with a compound of general formula III

    摘要翻译: 提供了制备通式I化合物的方法:其中A,R 1,R 2,R 3和R 4具有说明书中给出的含义,该方法包括 式II化合物,其中R x是可被氨基吡唑取代的基团,与通式III的化合物