申请人:FUJIFILM Corporation
公开号:EP2799431A1
公开(公告)日:2014-11-05
The object of the present invention is to provide a compound and a pharmaceutical composition having excellent Syk inhibitory activity. According to the present invention, a nicotinamide derivative represented by the following formula (I) or a salt thereof is provided,
wherein
R1 is a substituent represented by the following formula (II-1), (III-1), or (IV-1)
(wherein R3, R4, R5, n, and X1 have the same definitions as those described in the specification), and R2 is a pyridyl, indazolyl, phenyl, pyrazolopyridyl, benzisoxazolyl, pyrimidinyl, or quinolyl group, each of which optionally has at least one substituent.
本发明的目的是提供一种具有优异的 Syk 抑制活性的化合物和药物组合物。根据本发明,提供了由下式(I)代表的烟酰胺衍生物或其盐、
其中
R1 是由下式(II-1)、(III-1)或(IV-1)代表的取代基
(其中 R3、R4、R5、n 和 X1 的定义与说明书中所述的定义相同),R2 是吡啶基、吲唑基、苯基、吡唑并吡啶基、苯并异噁唑基、嘧啶基或喹啉基,每个基团任选具有至少一个取代基。