Methods for the dealkylation of phosphonate esters
    16.
    发明授权
    Methods for the dealkylation of phosphonate esters 有权
    膦酸酯的脱烷基化方法

    公开(公告)号:US06465649B1

    公开(公告)日:2002-10-15

    申请号:US09641547

    申请日:2000-08-17

    IPC分类号: C07F902

    摘要: Disclosed are methods for the dealkylation of phosphonate esters by use of trimethylchlorosilane as the dealkylating agent. In particular, this invention is directed to the discovery that high yields for the dealkylation of phosphonate esters can be achieved within relatively short reaction times by the use of trimethylchlorosilane provided that the dealkylation procedure occurs in a sealed vessel containing a compatible solvent.

    摘要翻译: 公开了通过使用三甲基氯硅烷作为脱烷基化剂使膦酸酯脱烷基化的方法。 特别地,本发明涉及如下发现:通过使用三甲基氯硅烷可以在相对较短的反应时间内实现膦酸酯的脱烷基化的高产率,条件是脱烷基化程序发生在含有相容溶剂的密封容器中。

    Antiviral agents
    18.
    发明授权
    Antiviral agents 失效
    抗病毒剂

    公开(公告)号:US5449664A

    公开(公告)日:1995-09-12

    申请号:US808968

    申请日:1991-12-16

    摘要: Nucleoside compounds of the formula ##STR1## wherein: B is a purine or a pyrimidine;X and X' are H, OH or F, provided that at least one is H;Y and Y' are H, OH, OCH.sub.3 or F, provided that at least one is H;Y' and Z together form a cyclic phosphate ester, provided that Y is H; orZ is ##STR2## where n is zero, one, two or three; and Z' is N.sub.3 or OCH.sub.3 ; provided that when X' and Y' are OH and Z' is N.sub.3, B is not cytosine, andwhen X' and Y' are OH and Z' is OCH.sub.3, B is not uracil, adenine or cytosine;and the pharmaceutically acceptable esters, ethers and salts thereof, have been found to have potent antiviral activity with a high therapeutic ratio.

    摘要翻译: 式IMA的核苷化合物其中:B是嘌呤或嘧啶; X和X'是H,OH或F,条件是至少一个是H; Y和Y'是H,OH,OCH 3或F,条件是至少一个是H; Y'和Z一起形成环状磷酸酯,条件是Y是H; 或Z为,其中n为零,一,二或三; Z'为N 3或OCH 3; 条件是当X'和Y'为OH且Z'为N 3时,B不是胞嘧啶,当X'和Y'为OH且Z'为OCH 3时,B不是尿嘧啶,腺嘌呤或胞嘧啶; 已经发现其药学上可接受的酯,醚和盐具有高治疗比的有效的抗病毒活性。

    Nucleotide analogues
    20.
    发明授权
    Nucleotide analogues 失效
    核苷酸类似物

    公开(公告)号:US5659023A

    公开(公告)日:1997-08-19

    申请号:US384504

    申请日:1995-02-01

    CPC分类号: C07F9/65586 C07F9/65616

    摘要: In accordance with this invention novel compounds are provided that are selected from saturated and unsaturated pyrans and furans substituted with at least a phosphonate group and a heterocyclic base. These compounds are useful as antiinfectives, flame retardants, diagnostic oligonucleotides and immunogens.

    摘要翻译: 根据本发明,提供了选自饱和和不饱和的吡喃和呋喃的新化合物,其被至少一个膦酸酯基和杂环碱取代。 这些化合物可用作抗感染剂,阻燃剂,诊断性寡核苷酸和免疫原。