Process for the production of purine derivatives and intermediates therefor
    2.
    发明授权
    Process for the production of purine derivatives and intermediates therefor 有权
    用于生产嘌呤衍生物及其中间体的方法

    公开(公告)号:US06555685B1

    公开(公告)日:2003-04-29

    申请号:US09623662

    申请日:2000-11-01

    IPC分类号: C07D47318

    CPC分类号: C07D473/00 C07D319/06

    摘要: A process for preparing purine derivatives, such as famiciclovir and penciclovir, by reacting, in the presence of a palladium (0) catalyst and a ligand, a compound of the formula with a compound of the formula wherein X is H, OH or halo; Y is a leaving group; and R1 and R2 are selected independently from C1-12alkyl, aryl, C1-12alkylaryl, C1-12alkylsilyl, arylsilyl and C1-12alkyldiarylsilyl or are joined together to form a moiety of the formula wherein R3 and R4 are selected independently from H, C1-12alkyl and aryl.

    摘要翻译: 通过在钯(0)催化剂和配体的存在下,通过使式(Ⅳ)化合物的化合物与式(Ⅳ)化合物反应来制备嘌呤衍生物如氟嘧啶和喷昔洛维的方法是H,OH或卤素; Y是离职团体 并且R 1和R 2独立地选自C 1-12烷基,芳基,C 1-12烷基芳基,C 1-12烷基甲硅烷基,芳基甲硅烷基和C 1-12烷基二芳基甲硅烷基,或连接在一起形成糠醛的部分,R 3和R 4独立地选自H,C 1-12烷基 和芳基。