申请人:FUJIFILM Corporation
公开号:US20140309225A1
公开(公告)日:2014-10-16
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
R
1
is a substituent represented by the following formula (II-1), (III-1), or (IV-1)
(wherein R
3
, R
4
, R
5
, n, and X
1
have the same definitions as those described in the specification), and R
2
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,提供了由以下式(I)表示的烟酰胺衍生物或其盐,
其中
R
1
是由以下式(II-1)、(III-1)或(IV-1)表示的取代基
(其中R
3
、R
4
、R
5
、n和X
1
的定义与说明书中描述的相同),而R
2
是吡啶基、吲唑基、苯基、吡唑吡啶基、苯并异噁唑基、嘧啶基或喹啉基,每种基可选择地具有至少一个取代基。