SYNTHESIS OF (4-FLUORO-3-PIPERIDIN-4-YL-BENZYL)-CARBAMIC ACID TERT-BUTYL ESTER AND INTERMEDIATES THEREOF
    3.
    发明申请
    SYNTHESIS OF (4-FLUORO-3-PIPERIDIN-4-YL-BENZYL)-CARBAMIC ACID TERT-BUTYL ESTER AND INTERMEDIATES THEREOF 有权
    (4-氟-3-哌啶-4-基 - 苯甲酰基) - 氨基丁酸叔丁酯的合成及其中间体

    公开(公告)号:US20120184745A1

    公开(公告)日:2012-07-19

    申请号:US13426721

    申请日:2012-03-22

    摘要: The present invention is an improved method for the preparation of 4-fluoro-3-piperidin-4-yl-benzyl)-carbamic acid tert-butyl ester, compound of formula I. The invention is directed to a method of synthesis for the compound of formula I in three steps, comprising formation of 5-((tert-butoxycarbonyl)aminomethyl)-2-fluorobenzeneboronic acid (compound 11), reaction of compound 11 under Suzuki coupling conditions to yield (4-fluoro-2-pyridin-4-yl-benzyl)-carbamic acid tert-butyl ester and selective hydrogenation of the aforementioned product under hydrogenation conditions yields compound I. The invention is also directed to the intermediates 5-((tert-butoxycarbonyl)amino-methyl)-2-fluorobenzeneboronic acid (compound 11), and (4-fluoro-2-pyridin-4-yl-benzyl)-carbamic acid tert-butyl ester (compound 13).

    摘要翻译: 本发明是制备式I化合物的4-氟-3-哌啶-4-基 - 苄基) - 氨基甲酸叔丁酯的改进方法。本发明涉及一种合成化合物的方法 的式I化合物包括形成5 - ((叔丁氧基羰基)氨基甲基)-2-氟苯硼酸(化合物11),化合物11在Suzuki偶联条件下反应,得到(4-氟-2-吡啶-4-基 - 苄基) - 氨基甲酸叔丁酯,并在氢化条件下对上述产物进行选择性氢化,得到化合物I.本发明还涉及中间体5 - ((叔丁氧基羰基)氨基 - 甲基)-2-氟苯硼 (化合物11)和(4-氟-2-吡啶-4-基 - 苄基) - 氨基甲酸叔丁酯(化合物13)。