METHOD FOR SYNTHESIS OF O-DIPHENYLPHOSPHINOBENZOIC ACID
    43.
    发明申请
    METHOD FOR SYNTHESIS OF O-DIPHENYLPHOSPHINOBENZOIC ACID 审中-公开
    合成O-二苯基膦基苯甲酸的方法

    公开(公告)号:US20110077426A1

    公开(公告)日:2011-03-31

    申请号:US12675197

    申请日:2009-01-21

    IPC分类号: C07F9/50

    CPC分类号: C07F9/5022

    摘要: The present invention relates to a method for synthesis of o-diphenylphosphinobenzoic acid which includes the steps as follows: using chlorodiphenylphosphine as starting material, chlorodiphenylphosphine and alkali metal are added to the solvent to conduct cracking, which produces a diphenyl phosphine alkali metal salt, then o-chlorobenzoic acid salt or o-chlorobenzoic acid ester is added to conduct coupling reaction to produce diphenylphosphinobenzoic acid salt or diphenylphosphinobenzoic acid ester, o-diphenylphosphinobenzoic acid is obtained after hydrolysis. o-diphenylphosphinobenzoic acid can be prepared under atmospheric pressure at temperature above 0° C. by using the present method. The method is safe and stable to operate and can save a lot of energy, thus being suitable for large-scale production.

    摘要翻译: 本发明涉及一种合成邻二苯基次膦酸苯甲酸的方法,包括以下步骤:以氯二苯基膦为起始原料,向溶剂中加入氯二苯基膦和碱金属进行裂解,产生二苯基膦碱金属盐,然后 加入邻氯苯甲酸盐或邻氯苯甲酸进行偶联反应,生成二苯基膦基苯甲酸盐或二苯基膦基苯甲酸酯,水解后得到邻二苯基膦基苯甲酸。 邻二苯基膦基苯甲酸可以通过使用本发明的方法在大气压下在0℃以上的温度下制备。 该方法操作安全稳定,节省大量能源,适合大规模生产。

    1,6-naphthyridine derivatives and their use to treat diabetes and related disorders
    46.
    发明授权
    1,6-naphthyridine derivatives and their use to treat diabetes and related disorders 失效
    1,6-萘啶衍生物及其用于治疗糖尿病和相关疾病的用途

    公开(公告)号:US06677352B1

    公开(公告)日:2004-01-13

    申请号:US10253215

    申请日:2002-09-23

    IPC分类号: A61K31435

    摘要: The invention relates generally to naphthyridine derivatives of the formula wherein one of U, X, Y and Z is nitrogen and the others are C—R, where R is hydrogen or a substituent. More specifically, the invention relates to 1,6-naphthyridine derivatives and pharmaceutical compositions containing such derivatives. Methods of the invention comprise administration of a naphthyridine derivative of the invention for the treatment of diabetes and related disorders.

    摘要翻译: 本发明一般涉及U,X,Y和Z之一的萘啶衍生物是氮,其它是C-R,其中R是氢或取代基。 更具体地,本发明涉及1,6-萘啶衍生物和含有这些衍生物的药物组合物。 本发明的方法包括施用本发明的萘啶衍生物用于治疗糖尿病和相关疾病。