申请人:Sato Yoshiyuki
公开号:US20080103136A1
公开(公告)日:2008-05-01
The present invention relates to a compound represented by the Formula [I]:
Wherein:
the A ring is a 5-membered aromatic heterocyclic group containing at least one hetero atom selected from a nitrogen atom, and the like; A
1
and A
2
, are each a nitrogen atom, and the like; X
2
, X
3
, X
4
, and X
5
are all carbon atoms, or alternatively any one of X
2
, X
3
, X
4
, and X
5
is a nitrogen atom and the rest are all carbon atoms; R
1
is a hydrogen atom, or the like; R
2
, R
3
, R
4
, and R
5
, are each a hydrogen atom, or the like; R
6
and R
6
′, are each a hydrogen atom, and the like; R
7
is an aryl group and the like; and R
8
is an amino group or a hydroxy group,
or a pharmaceutically acceptable salt or ester thereof.