A compound represented by the formula (I) wherein R 1 and R 2 are each a hydrogen atom, an alkyl group and the like, R 3 is a hydrogen atom, an alkyl group and the like, R 4 is a hydrogen atom, an alkyl group and the like, m is an integer of 0 to 3, X is a bond, an oxygen atom or a sulfur atom, Y is a carbonyl group, a hydroxymethylene group and the like, and Z is a halogen atom, an alkyl group, an aryl group, a heteroaryl group and the like, or a pharmaceutically acceptable salt thereof has a superior PPAR± agonist action and a lipid-lowering action, and is useful as a prophylactic or therapeutic drug for hyperlipidemia and the like.