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    • 13. 发明授权
    • Preparation process of biphenylcarboxylic acid amide derivatives
    • 联苯羧酸酰胺衍生物的制备方法
    • US06787653B2
    • 2004-09-07
    • US10162602
    • 2002-06-06
    • Hiroyuki IshiwataSeiichi SatoMototsugu KabeyaSoichi Oda
    • Hiroyuki IshiwataSeiichi SatoMototsugu KabeyaSoichi Oda
    • C07D21126
    • C07D295/192
    • A process for preparing a biphenylcarboxylic acid amide derivative represented by the following formula (1): wherein, R1, R2 and R3 each independently represents a hydrogen atom or a substituent, which comprises reacting, in the presence of a metal catalyst, a halogenobenzoic acid derivative represented by the following formula (2): wherein, X represents a halogen atom with a compound represented by the following formula (3): wherein, R1, R2 and R3 have the same meanings as described above, and Y represents an leaving group having an element selected from the group consisting of boron, silicon, zinc, tin and magnesium; or salt thereof. According to the present invention, biphenylcarboxylic acid amide derivatives of the formula (1) or salts thereof having excellent inhibitory activity against IgE antibody production can be prepared by the reduced number of steps, conveniently, at lower cost and in a high yield.
    • 一种制备由下式(1)表示的联苯羧酸酰胺衍生物的方法:其中R 1,R 2和R 3各自独立地表示氢原子或取代基,其包括在 存在金属催化剂,由下式(2)表示的卤代苯甲酸衍生物:其中,X表示与下式(3)表示的化合物的卤素原子:其中,R 1,R 2和 R 3具有与上述相同的含义,Y表示具有选自硼,硅,锌,锡和镁的元素的离去基团; 或其盐。根据本发明,具有优异的抗IgE抗体产生抑制活性的式(1)的联苯基羧酸酰胺衍生物或其盐可以通过减少数量的步骤,以较低的成本和较高的成本 产量。