Patent ID: 8889741

Claim:
A compound represented by formula (I): or a pharmacologically acceptable salt thereof, wherein Ar 1 is a heteroaryl group; Ar 2 is a heteroaryl group; R 1 , R 2 and R 3 are each independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a cyano group; R 4 and R 5 are each independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a C1-C6 alkoxy group; and n is an integer of 1 to 3; wherein each heteroaryl group or aryl group is optionally substituted with one or two groups independently selected from a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group, a carboxy group, a cyano group, an amino group, a C1-C3 alkylamino group and a di-C1-C3 alkylamino group; and when a heteroaryl group or an aryl group is substituted with two such groups, the two groups may be the same as or different from each other.