METHOD OF PURIFICATION OF PROSTAGLANDINS INCLUDING FLUORINE ATOMS BY PREPARATIVE HPLC
    1.
    发明申请
    METHOD OF PURIFICATION OF PROSTAGLANDINS INCLUDING FLUORINE ATOMS BY PREPARATIVE HPLC 审中-公开
    通过制备性HPLC纯化含有荧光素的前列腺素的方法

    公开(公告)号:US20140051882A1

    公开(公告)日:2014-02-20

    申请号:US13765787

    申请日:2013-02-13

    IPC分类号: C07C67/58

    摘要: The present invention discloses a method of purification of prostaglandins including fluorine atoms by using preparative HPLC. Tafluprost and Travoprost are prostaglandins including fluorine. The chemical structure of the impurities in crude Tafluprost and crude Travoprost also contain fluorine, therefore, the removal of the impurities is difficult. Purification by using preparative high performance liquid chromatography (HPLC) can achieve high-quality liquid bulk drugs.

    摘要翻译: 本发明公开了使用制备型HPLC纯化包括氟原子的前列腺素的方法。 他氟前列素和曲伏前列素是前列腺素,包括氟。 原来塔夫利前列素和格拉夫前列素中的杂质的化学结构也含有氟,因此难以除去杂质。 通过使用制备型高效液相色谱(HPLC)进行纯化可以实现高质量的液体散装药物。

    METHOD OF SYNTHESIZING BEPOTASTINE OR BENZENESULFONIC ACID SALT THEREOF AND INTERMEDIATES USED THEREIN
    2.
    发明申请
    METHOD OF SYNTHESIZING BEPOTASTINE OR BENZENESULFONIC ACID SALT THEREOF AND INTERMEDIATES USED THEREIN 审中-公开
    合成二十一碳烯酸或其苯甲酸盐的方法及其使用的中间体

    公开(公告)号:US20140046068A1

    公开(公告)日:2014-02-13

    申请号:US13758065

    申请日:2013-02-04

    IPC分类号: C07D401/12

    CPC分类号: C07D401/12

    摘要: The present invention relates to a novel method of synthesizing bepotastine or its benzenesulfonic acid salt and novel intermediates used therein. The present invention uses L-α-hydroxy acid for chiral resolution to form an L-α-hydroxy acid salt of a compound represented by the following formula (VII-1), so as to synthesize bepotastine or its benzenesulfonic acid salt in high optical purity.

    摘要翻译: 本发明涉及一种合成贝司他丁或其苯磺酸盐的新方法及其中使用的新型中间体。 本发明使用L-α-羟基酸进行手性拆分以形成由下式(VII-1)表示的化合物的L-α-羟基酸盐,以便以高光学合成贝他辛胺或其苯磺酸盐 纯度。