A heteroaryl derivative of the formula (1):
(wherein Ring Z is an optionally substituted heteroaryl, R
1
is a carboxyl group or an alkoxycarbonyl group, etc., W
1
and W
2
are an optionally substituted lower alkylene, Ar
1
is an optionally substituted arylene or an optionally substituted heteroarylene, W
3
is a single bond, a lower alkylene, a lower alkenylene, etc., W
4
is a single bond, —NR
10
—, etc., Ar
2
is an optionally substituted aryl or an optionally substituted heteroaryl), or a prodrug thereof, or a pharmaceutically acceptable salt thereof.