Process to prepare pyrimidine nucleosides
    17.
    发明授权
    Process to prepare pyrimidine nucleosides 失效
    制备嘧啶核苷的方法

    公开(公告)号:US5077403A

    公开(公告)日:1991-12-31

    申请号:US568412

    申请日:1990-08-16

    IPC分类号: C07H19/06 C07H23/00

    CPC分类号: C07H23/00 C07H19/06

    摘要: A process for the production of a compound of the formula ##STR1## where R.sub.1 and R.sub.2 each are alkyl C.sub.1 -C.sub.16, aryl, aralkyl, alkenyl, alkynyl, cyano, carboxy and esters, carboximido, N-monosubstituted and N,N-disubstituted carboximido with alkyl, aralkyl, and aryl groups; R.sub.3 is tertiary butyldimethyl silyl, R.sub.4 is tertiarybutyldimethylsilyl, trimethylsilyl, X=O or NH comprising condensing a compound of the formula ##STR2## wherein R.sub.3 and R.sub.4 are as defined above with a compound of either the formula: ##STR3## wherein R.sub.1 and R.sub.2 are as defined above and R.sub.5 is C.sub.1 -C.sub.4 ; in the presence of a reaction-inert solvent at a temperature of from 50.degree.to about 150.degree. C. forming an intermediate and oxidizing the intermediate product, to form the desired compound of formula I. The products are antiviral.

    摘要翻译: 制备式Ⅰ化合物的方法,其中R 1和R 2各自为C 1 -C 16烷基,芳基,芳烷基,烯基,炔基,氰基,羧基和酯,碳代亚氨基,N-单取代和N,N-二 具有烷基,芳烷基和芳基的二取代的羰基亚氨基; R3是叔丁基二甲基甲硅烷基,R4是叔丁基二甲基甲硅烷基,三甲基甲硅烷基,X = O或NH,其包括将下式化合物(其中R 3和R 4如上定义)与下式化合物缩合: 图像IIIb其中R1和R2如上定义,R5是C1-C4; 在反应惰性溶剂存在下,在50至150℃的温度下形成中间体并氧化中间产物,形成所需的式I化合物。产物是抗病毒的。

    RNA interference mediated inhibition of hepatitis C virus (HCV) expression using short interfering nucleic acid (siNA)
    20.
    发明授权
    RNA interference mediated inhibition of hepatitis C virus (HCV) expression using short interfering nucleic acid (siNA) 有权
    使用短干扰核酸(siNA)的RNA干扰介导的丙型肝炎病毒(HCV)表达的抑制

    公开(公告)号:US07935812B2

    公开(公告)日:2011-05-03

    申请号:US12418477

    申请日:2009-04-03

    IPC分类号: C07H21/04 C07H21/02 A61K48/00

    摘要: The present invention relates to compounds, compositions, and methods for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of hepatitis C virus (HCV) gene expression and/or activity. The present invention is also directed to compounds, compositions, and methods relating to traits, diseases and conditions that respond to the modulation of expression and/or activity of genes involved in hepatitis C virus (HCV) gene expression pathways or other cellular processes that mediate the maintenance or development of such traits, diseases and conditions. Specifically, the invention relates to double stranded nucleic acid molecules capable of mediating or that mediate RNA interference (RNAi) against hepatitis C virus (HCV) gene expression, including cocktails of such small nucleic acid molecules and lipid nanoparticle (LNP) formulations of such small nucleic acid molecules.

    摘要翻译: 本发明涉及用于研究,诊断和治疗对丙型肝炎病毒(HCV)基因表达和/或活性的调节作用的性状,疾病和病症的化合物,组合物和方法。 本发明还涉及与涉及丙型肝炎病毒(HCV)基因表达途径或介导的其他细胞过程的基因的表达和/或活性的调节作用的性状,疾病和病症有关的化合物,组合物和方法 维持或发展这些性状,疾病和状况。 具体地,本发明涉及能够介导或介导针对丙型肝炎病毒(HCV)基因表达的RNA干扰(RNAi)的双链核酸分子,包括这种小核酸分子的混合物和这种小的核酸分子的脂质纳米颗粒(LNP)制剂 核酸分子。