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    • 1. 发明授权
    • Methods for producing nucleoside derivatives and intermediates therefor
    • 制备核苷衍生物的方法及其中间体
    • US6090937A
    • 2000-07-18
    • US267789
    • 1999-03-15
    • Satoshi TakamatsuSatoshi KatayamaNaoko HiroseKunisuke IzawaTokumi Maruyama
    • Satoshi TakamatsuSatoshi KatayamaNaoko HiroseKunisuke IzawaTokumi Maruyama
    • C07D473/00C07H19/16C07H19/167C07H19/19
    • C07D473/00C07H19/16
    • Novel intermediates of nucleoside derivatives, of which the 6-position of the nucleic acid base moiety is substituted with a halogen atom, are produced. Using those novel intermediates, even substrates, of which the 3'-position of the saccharide moiety is deoxylated, can be substituted at the 2'-position at an extremely high yield. Specifically, by subjecting a 3'-deoxy derivative of inosine to 6-halogenation to give a 6-halide of the derivative, and then subjecting it to 2'-deoxylation/substitution with a fluorine atom or the like, followed by further subjecting it to substitution with an amino group, a hydroxyl group or any other intended substituent at the 6-positioned halogen atom, nucleoside derivatives are produced at a high yield.Methods for producing nucleoside derivatives including 9-(2,3-dideoxy-2-fluoro-.beta.-D-threo-pentofuranosyl)adenine (FddA) and their related compounds, in a simplified manner, at a high yield and at low costs, and especially Economical methods for substituting substrates, of which the 3'-position of the saccharide moiety is deoxylated, at the 2'-position to produce those nucleoside derivatives on an industrial scale are also provided.
    • 产生其核酸碱基部分的6位被卤素原子取代的核苷衍生物的新型中间体。 使用这些新型中间体,其中糖基部分的3'-位脱氧的偶联底物可以在2'-位以非常高的收率被取代。 具体来说,通过使肌苷的3'-脱氧衍生物进行6-卤化,得到该衍生物的6-卤化物,然后用氟原子等进行2'-脱氧/取代,然后进一步对其进行 以6-取代的卤素原子被氨基,羟基或任何其它目的取代基取代,以高产率生产核苷衍生物。 以简单的方式以高产率和低成本生产包括9-(2,3-二脱氧-2-氟-β-D-苏氨酸 - 呋喃鸟糖基)腺嘌呤(FddA)及其相关化合物的核苷衍生物的方法, 并且还提供了用于将2'-位上的糖部分的3'-位脱氧的底物替代为工业规模生产这些核苷衍生物的经济方法。
    • 2. 发明授权
    • Methods for producing nucleoside derivatives and intermediates therefor
    • 制备核苷衍生物的方法及其中间体
    • US06500946B1
    • 2002-12-31
    • US09567980
    • 2000-05-10
    • Satoshi TakamatsuSatoshi KatayamaNaoko HiroseKunisuke IzawaTokumi Maruyama
    • Satoshi TakamatsuSatoshi KatayamaNaoko HiroseKunisuke IzawaTokumi Maruyama
    • C07H1919
    • C07D473/00C07H19/16
    • Novel intermediates of nucleoside derivatives, of which the 6-position of the nucleic acid base moiety is substituted with a halogen atom, are produced. Using those novel intermediates, even substrates, of which the 3′-position of the saccharide moiety is deoxylated, can be substituted at the 2′-position at an extremely high yield. Specifically, by subjecting a 3′-deoxy derivative of inosine to 6-halogenation to give a 6-halide of the derivative, and then subjecting it to 2′-deoxylation/substitution with a fluorine atom or the like, followed by further subjecting it to substitution with an amino group, a hydroxyl group or any other intended substituent at the 6-positioned halogen atom, nucleoside derivatives are produced at a high yield. Methods for producing nucleoside derivatives including 9-(2,3-dideoxy-2-fluoro-&bgr;-D-threo-pentofuranosyl)adenine (FddA) and their related compounds, in a simplified manner, at a high yield and at low costs, and especially Economical methods for substituting substrates, of which the 3′-position of the saccharide moiety is deoxylated, at the 2′-position to produce those nucleoside derivatives on an industrial scale are also provided.
    • 产生其核酸碱基部分的6位被卤素原子取代的核苷衍生物的新型中间体。 使用这些新型中间体,其中糖基部分的3'-位脱氧的偶联底物可以在2'-位以非常高的收率被取代。 具体来说,通过使肌苷的3'-脱氧衍生物进行6-卤化,得到该衍生物的6-卤化物,然后用氟原子等进行2'-脱氧/取代,然后进一步对其进行 以6-取代的卤素原子被氨基,羟基或任何其它目的取代基取代,以高产率生产核苷衍生物。 以简单的方式以高产率和低成本制备包括9-(2,3-二脱氧-2-氟-β-D-苏 - 呋喃鸟糖基)腺嘌呤(FddA)及其相关化合物的核苷衍生物的方法, 并且还提供了用于将2'-位上的糖部分的3'-位脱氧的底物替代为工业规模生产这些核苷衍生物的经济方法。