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    • 10. 发明授权
    • Synthesis of (4-fluoro-3-piperidin-4-yl-benzyl)-carbamic acid tert-butyl ester and intermediates thereof
    • (4-氟-3-哌啶-4-基 - 苄基) - 氨基甲酸叔丁酯的合成及其中间体
    • US08633321B2
    • 2014-01-21
    • US13426721
    • 2012-03-22
    • Nakyen ChoyJohn J. Shay, Jr.Adam W. Sledeski
    • Nakyen ChoyJohn J. Shay, Jr.Adam W. Sledeski
    • C07D211/02
    • C07D211/18C07D213/16C07F5/025
    • The present invention is an improved method for the preparation of (4-fluoro-3-pyridin-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-3-pyridin-4-yl-benzyl)-carbamic acid tert-butyl ester (compound 13).
    • 本发明是制备(4-氟-3-吡啶-4-基 - 苄基) - 氨基甲酸叔丁酯,式I化合物的改进方法。本发明涉及一种合成方法 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偶联条件下的反应,得到(4-氟-2-吡啶-2-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- 氟化硼酸(化合物11)和(4-氟-3-吡啶-4-基 - 苄基) - 氨基甲酸叔丁酯(化合物13)。