SYNTHESIS OF FLG
    6.
    发明申请
    SYNTHESIS OF FLG 审中-公开
    FLG的合成

    公开(公告)号:WO2012115578A1

    公开(公告)日:2012-08-30

    申请号:PCT/SE2012/050183

    申请日:2012-02-20

    IPC分类号: C07D307/20 C07H19/173

    摘要: The present invention concerns the synthesis of substantially anomerically pure 2,3-dideoxy-3- fluoro-5-0-(4-phenylbenzoyl)-a-D-erythropentofuranosyl chloride from an α/β-mixture of the corresponding methyl glycoside. The method of the invention provides the pure a-chloride without the need of anomeric separation. The α-chloride thus achieved is suitable for use as glycosyl donor in the preparation of 2',3'-dideoxy-3'-fluoro nucleosides. In particular, the preparation of 2',3'-dideoxy-3 '-fluoroguanosine, FLG, using an α/β-mixture of the methyl glycoside without the need of anomeric separation is disclosed.

    摘要翻译: 本发明涉及从相应的甲基糖苷的α-β混合物合成基本上异头纯的2,3-二脱氧-3-氟-5-0-(4-苯基苯甲酰基)-a-D-赤式呋喃糖基氯。 本发明的方法提供了纯氯化物,而不需要端基分离。 如此实现的a-chloride适合用作制备2',3'-二脱氧-3'-氟核苷的糖基供体。 特别地,公开了使用甲基糖苷的α-β混合物制备2',3'-二脱氧-3'-氟鸟嘌呤,FLG,而不需要异头分离。