Pyrazolo (3,4-d) pyrimidines and methods of making
    5.
    发明授权
    Pyrazolo (3,4-d) pyrimidines and methods of making 失效
    吡唑并(3,4-d)嘧啶及其制备方法

    公开(公告)号:US4260758A

    公开(公告)日:1981-04-07

    申请号:US76405

    申请日:1979-09-17

    CPC分类号: C07D471/04 C07D487/04

    摘要: Novel compounds of the general formula (XIX) ##STR1## where R.sup.9 is selected from lower alkyl, phenyl, phenyl substituted by one or more hydroxy or lower alkoxy, or pyridyl, are disclosed.A method of making the compounds of Formula (XIX) is disclosed, which comprises heating in aqueous acid a compound of formula (XX) ##STR2## wherein R.sup.10 is selected from lower alkyl, phenyl, phenyl substituted by one or more hyroxy or lower alkoxy or pyridyl and R.sup.11 is selected from lower alkyl, phenyl, substituted by one or more hydroxy or lower alkoxy, pyridyl or --CO.sub.2 R where R is lower alkyl.

    摘要翻译: 公开了通式(XIX)的新型化合物,其中R 9选自低级烷基,苯基,被一个或多个羟基或低级烷氧基取代的苯基或吡啶基。 公开了制备式(XIX)化合物的方法,其包括在酸水溶液中加热式(XX)化合物(XX),其中R 10选自低级烷基,苯基,被一个或多个羟基取代的苯基 或低级烷氧基或吡啶基,R 11选自被一个或多个羟基或低级烷氧基取代的低级烷基,苯基,吡啶基或-CO 2 R,其中R为低级烷基。