申请人:Arimura Akinori
                            
                            
                                公开号:US20070027144A1
                            
                            
                                公开(公告)日:2007-02-01
                            
                            An inhibitor for an inflammatory cell infiltration in the respiratory tract, an inhibitor for hyperirritability in the respiratory tract, a muciparous inhibitor, or a bronchodilator which contains as an active ingredient a compound represented by the formula (I) or (II):
wherein R
1
is the group represented by the formula: —C(=Z)-W—R
4
wherein Z is an oxygen atom or the like; W is an oxygen atom or the like; R
4
is optionally substituted alkyl or the like;
R
2
and R
3
are independently optionally substituted alkyl or the like; or
R
2
and R
3
are taken together to form optionally substituted alkylene which may contain a heteroatom(s); m is an integer of 0 to 2;
A is optionally substituted aryl or optionally substituted heteroaryl;
wherein R
5
is the group represented by the formula: —Y
1
—Y
2
—Y
3
—R
a
wherein Y
1
and Y
3
are each independently a bond or the like; Y
2
is —C(═O)—NR
b
— or the like; R
a
is optionally substituted alkyl, or the like; R
b
is a hydrogen atom or the like;
R
6
is a hydrogen atom or the like;
R
7
and R
8
are each independently optionally substituted alkyl or the like; or
R
7
and R
8
are taken together with the adjacent carbon atoms to form a 5 to 8 membered ring which may contain a heteroatom(s) and/or an unsaturated bond(s);
R
9
is optionally substituted alkyl which may contain a heteroatom(s) and/or an unsaturated bond(s), or the like; X is a oxygen atom or the like.