Process for making nitric oxide releasing prodrugs of diaryl-2-(5H)-furanones as cyclooxygenase-2 inhibitors
    2.
    发明申请
    Process for making nitric oxide releasing prodrugs of diaryl-2-(5H)-furanones as cyclooxygenase-2 inhibitors 审中-公开
    制备一氧化氮释放二芳基-2-(5H) - 呋喃酮作为环加氧酶-2抑制剂的前药的方法

    公开(公告)号:US20050192346A1

    公开(公告)日:2005-09-01

    申请号:US11066676

    申请日:2005-02-25

    摘要: The invention encompasses a novel process for making compounds of Formula I which are prodrugs of cyclooxygenase-2 selective inhibitors that convert in vivo to diaryl-2-(5H)-furanones and also liberate nitric oxide in vivo. As such, the compounds made by the present invention may be co-dosed with low-dose aspirin to treat chronic cyclooxygenase-2 mediated diseases or conditions, effectively reduce the risk of thrombotic cardiovascular events and potentially renal side effects and at the same time reduce the risk of GI ulceration or bleeding. The present invention describes an efficient and economical process for the preparation of 2,3-disubstituted (2Z)-4-acetoxybut-2-enoate derivatives that is useful for the production of kilogram quantities of material for preclinical and clinical use.

    摘要翻译: 本发明包括制备式I化合物的新方法,其为在体内将其转化为二芳基-2-(5H) - 呋喃酮并在体内释放一氧化氮的环氧合酶-2选择性抑制剂的前药。 因此,本发明制备的化合物可以与低剂量阿司匹林共同治疗以治疗慢性环氧合酶-2介导的疾病或病症,有效降低血栓性心血管事件和潜在的肾脏副作用的风险,同时减少 GI溃疡或出血的风险。 本发明描述了用于制备2,3-二取代(2Z)-4-乙酰氧基丁-2-烯酸酯衍生物的有效和经济的方法,其用于生产用于临床和临床应用的千克量的材料。

    Process for regioselective substitution of trifluorobenzoate or
trifluorobenzonitrile
    5.
    发明授权
    Process for regioselective substitution of trifluorobenzoate or trifluorobenzonitrile 失效
    三氟苯甲酸或三氟苄腈的区域选择性取代方法

    公开(公告)号:US5777123A

    公开(公告)日:1998-07-07

    申请号:US806502

    申请日:1997-02-27

    摘要: The invention provides a process for regioselective substitution of trifluorobenzoate/trifluorobenzonitrile to afford the difluorobenzoate/difluorobenzonitrile in good yields. The resulting difluorobenzoate/difluorobenzonitrile can again be regioselectively substituted with a second nucleophile to give monofluorobenzoate/monofluorobenzonitrile also in good yields. This process is particularly useful for forming key intermediates in the synthesis of oxytocin antagonist compounds.

    摘要翻译: 本发明提供了一种三氟苯甲酸酯/三氟苄腈的区域选择性取代方法,以高产率得到二氟苯甲酸酯/二氟苄腈。 得到的二氟苯甲酸酯/二氟苄腈可以再次用第二亲核试剂区域选择性地取代,得到单氟苯甲酸酯/单氟苄腈,也以良好的产率。 该方法特别适用于在合成催产素拮抗剂化合物中形成关键中间体。