Process for selectively producing isosorbide-5-nitrate
    2.
    发明授权
    Process for selectively producing isosorbide-5-nitrate 失效
    选择性生产异山梨醇-5-硝酸盐的方法

    公开(公告)号:US4297286A

    公开(公告)日:1981-10-27

    申请号:US114906

    申请日:1980-01-24

    IPC分类号: C07D493/04 C07D307/00

    CPC分类号: C07D493/04

    摘要: The present invention is related to a new process for selectively preparing isosorbide-5-nitrate (1.4-3.6-dianhydrosorbitol-5-nitrate) by subjecting isomannide (1.4-3.6-dianhydromannitol) in an organic solvent or an aqueous-organic reaction medium to reaction with the equivalent amount of an acid halogenide or the anhydride of a benzene or naphthalene sulfonic acid possibly substituted by lower alkyl, lower alkoxy and/or halogen, of a perfluoro - lower alkane-sulfonic acid, of a lower alkanesulfonic acid or of a perfluoro - lower - alkanoic acid or with the equivalent amount of an acid halogenide of a carbamic acid or of sulphurous acid; subjecting the resulting isomannide-2-ester in the presence of a solvent and possibly with heating, to reaction with an alkali metal salt or an ammonium salt of a benzoic acid possibly substituted by lower alkyl, lower alkoxy and/or halogen or of a lower alkanoic acid; converting the hydroxy group in the 5-position of the resulting isosorbide-2-ester into the nitric acid ester group in manners known per se by reaction with nitric acid; and subjecting the resulting isosorbide-2-ester-5-nitrate to selective hydrolysis and/or reesterification in an organic or aqueous-organic solvent with an alkali metal hydroxide in manners known per se.

    摘要翻译: 本发明涉及通过使有机溶剂或水 - 有机反应介质中的异烟肼(1.4-3.6-二脱水甘露糖醇)经过有机溶剂或水 - 有机反应介质中的选择性制备异山梨醇-5-硝酸盐(1.4-3.6-二脱水山梨糖醇-5-硝酸盐) 与等价量的酸性卤化物或可能被低级烷基磺酸或低级烷基磺酸的低级烷基磺酸的低级烷基,低级烷氧基和/或卤素取代的苯或萘磺酸的酸酐反应, 全氟 - 低级链烷酸或与当量的氨基甲酸或亚硫酸的酸式卤化物反应; 在溶剂存在下并可能加热使得到的异甘醇二酯酯与可能被低级烷基,低级烷氧基和/或卤素取代的苯甲酸的碱金属盐或铵盐反应 链烷酸 将所得的异山梨醇-2-酯的5位羟基转化为硝酸酯基,以本身已知的方式与硝酸反应; 并使所得的异山梨醇-2-酯-5-硝酸盐在有机或含水有机溶剂中用碱金属氢氧化物进行选择性水解和/或再酯交换。

    Organic nitrates and method for their preparation
    3.
    发明授权
    Organic nitrates and method for their preparation 失效
    有机硝酸盐及其制备方法

    公开(公告)号:US5428061A

    公开(公告)日:1995-06-27

    申请号:US116946

    申请日:1993-09-07

    CPC分类号: C07C327/34 C07C323/59

    摘要: New organic nitrate compounds, formed by condensing a nitrato alkanoic acid with a sulfur-containing amino acid or peptide, which prevent nitrate tolerance or overcome existing tolerance and which are useful for the treatment of cardiac diseases including circulatory diseases, high blood pressure, cardiac insufficiency and for dilating the peripheral vessels.

    摘要翻译: 通过将硝酸链烷酸与含硫氨基酸或肽缩合形成的新的有机硝酸盐化合物,其防止硝酸盐耐受性或克服现有的耐受性,并且其可用于治疗心脏疾病,包括循环系统疾病,高血压,心脏功能不全 并用于扩张外周血管。