Patent ID: 7884234

Claim:
A compound represented by the following formula (I) or a salt thereof: wherein R 1 represents a C 6-10 aryl group; or a C 6-10 aryl group substituted with a group or groups selected from a halogen atom, a cyano group, a nitro group, a C 1-6 alkyl group, a halogenated C 1-6 alkyl group, a C 1-6 alkoxy group, a halogenated C 1-6 alkoxy group, and a C 1-6 alkylsulfanyl group, R 2 represents a C 6-10 aryl group; or a C 6-10 aryl group substituted with a group or groups selected from a halogen atom, a hydroxy group, a C 1-6 alkyl group, a halogenated C 1-6 alkyl group, a C 1-6 alkoxy group, a halogenated C 1-6 alkoxy group, a C 1-6 alkylsulfanyl group, and a phenyl group, X represents a single bond or an oxygen atom, Z represents a phenylene group or a substituted phenylene group, m represents 0 or 1, with the proviso that when R 1 is a C 6-10 aryl group then X is an oxygen atom.