Provided is a compound represented by formula (1) or a pharmacologically acceptable salt thereof. (In the formula, A represents a C6-10 arylene group or the like； R1a, R1b and R1c each independently represents a hydrogen atom, a halogen atom, a C1-4 alkyl group, a C1-4 alkoxy group or the like； R2 represents an optionally substituted C6-10 aryl group, an optionally substituted 5-12 membered monocyclic or polycyclic heteroaryl group, an optionally substituted C7-16 aralkyl group or the like； m represents 0 or the like； and n represents an integer of 0-2.)
