申请人:Japan Tobacco, Inc.
公开号:EP1854793A1
公开(公告)日:2007-11-14
The present invention relates to an aminopyridine compound represented by the following general formula (I) or a salt thereof and an Syk inhibitor containing the compound or a salt thereof as an active ingredient. Here, X1, X2, X3, Z, Y1, Y2 represent a carbon atom or a nitrogen atom, R, R1, R5, R6 represent a hydrogen atom, an'alkyl group, etc., and R7 represents a hydrogen atom, a halogen atom, a nitro group, a cyano group, -CpH2(p-1) (Ra1) (Ra2) -O-Ra3, -C (=O) -Rd1, a 5 - or 6-membered saturated heterocyclic group, an aromatic heterocyclic group, -N(Rh1)(Rh2), etc. The aminopyridine compound of the present invention has not only high Syk inhibitory activity but also properties to selectively inhibit Syk.
本发明涉及由以下通式(I)代表的氨基吡啶化合物或其盐,以及含有该化合物或其盐作为活性成分的Syk抑制剂。这里,X1、X2、X3、Z、Y1、Y2 代表碳原子或氮原子,R、R1、R5、R6 代表氢原子、烷基等、R7代表氢原子、卤素原子、硝基、氰基、-CpH2(p-1) (Ra1) (Ra2) -O-Ra3, -C (=O) -Rd1, 5-或 6-元饱和杂环基团、芳香杂环基团、-N(Rh1)(Rh2)等。本发明的氨基吡啶化合物不仅具有很高的 Syk 抑制活性,而且还具有选择性抑制 Syk 的特性。