N-acetyl-3-fluoro-neuraminic acid derivatives and preparation thereof
    4.
    发明公开
    N-acetyl-3-fluoro-neuraminic acid derivatives and preparation thereof 失效
    N-乙酰-3-氟 - 神经酰胺酸衍生物及其制备方法

    公开(公告)号:EP0281067A3

    公开(公告)日:1988-12-14

    申请号:EP88103065

    申请日:1988-03-01

    申请人: MECT CORPORATION

    IPC分类号: C07H13/04 C07H07/027

    CPC分类号: C07H13/04

    摘要: This invention relates to novel derivatives of N-acetyl-­3-fluoro-neurminic acid derivatives (I) and preparation thereof. The compound (I) can be synthesized by reacting a solution of alkyl 5-acetamido-2,6-anhydro-4,7,8,9-tetra-­O-acetyl-2,3,5-trideoxy-D-glycero-D-galacto-2-enonate with (i) an inert gas containing fluorine or (ii) acetylhypo­fluorite obtained by passing the inert gas containing fluorine through a mixture of acetic acid/acetate by passing thereinto, and then removing a solvent and apply­ing the residue through a silica gel column chromatogra­phy.

    N-acetyl-3-fluoro-neuraminic acid derivatives and preparation thereof
    5.
    发明公开
    N-acetyl-3-fluoro-neuraminic acid derivatives and preparation thereof 失效
    N-Acetyl-3-fluorneuraminsäurederivateund deren Herstellung。

    公开(公告)号:EP0281067A2

    公开(公告)日:1988-09-07

    申请号:EP88103065.4

    申请日:1988-03-01

    申请人: MECT CORPORATION

    IPC分类号: C07H13/04 C07H7/027

    CPC分类号: C07H13/04

    摘要: This invention relates to novel derivatives of N-acetyl-­3-fluoro-neurminic acid derivatives (I) and preparation thereof. The compound (I) can be synthesized by reacting a solution of alkyl 5-acetamido-2,6-anhydro-4,7,8,9-tetra-­O-acetyl-2,3,5-trideoxy-D-glycero-D-galacto-2-enonate with (i) an inert gas containing fluorine or (ii) acetylhypo­fluorite obtained by passing the inert gas containing fluorine through a mixture of acetic acid/acetate by passing thereinto, and then removing a solvent and apply­ing the residue through a silica gel column chromatogra­phy.

    摘要翻译: 本发明涉及N-乙酰基-3-氟神经氨酸衍生物(I)的新衍生物及其制备方法。 化合物(I)可以通过使5-乙酰氨基-2,6-脱水-4,7,8,9-四-O-乙酰基-2,3,5-三脱氧-D-甘油醚的烷基溶液 (i)含氟的惰性气体或(ii)通过使含有氟的惰性气体通过乙酸/乙酸乙酯的混合物通过而获得的乙酰基次氟酸盐,然后除去溶剂并施加残余物 通过硅胶柱色谱法。