申请人:Kodama Yoshitoshi
公开号:US20060205731A1
公开(公告)日:2006-09-14
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, X
1
, X
2
, X
3
, Z, Y
1
, Y
2
represent a carbon atom or a nitrogen atom, R, R
1
, R
5
, R
6
represent a hydrogen atom, an alkyl group, etc., and R
7
represents a hydrogen atom, a halogen atom, a nitro group, a cyano group, —C
p
H
2(p-1)
(R
a1
)(R
a2
)—O—R
a3
, —C(═O)—R
d1
, a 5- or 6-membered saturated heterocyclic group, an aromatic heterocyclic group, —N(R
h1
)(R
h2
), etc. The aminopyridine compound of the present invention has not only high Syk inhibitory activity but also properties to selectively inhibit Syk.
本发明涉及以下一般式(I)所表示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。在这里,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、卤原子、硝基、氰基、—CpH2(p-1)(Ra1)(Ra2)—O—Ra3、—C(═O)—Rd1、5-或6-成员饱和杂环基、芳香杂环基、—N(Rh1)(Rh2)等。本发明的氨基吡啶化合物不仅具有高Syk抑制活性,还具有选择性抑制Syk的特性。