A compound represented by the formula (I) or a pharmacologically acceptable salt thereof is used as an activator of PPARwherein each of R1 and R2 is hydrogen, C1-8 alkyl, C1-8 alkyl substituted with halogen, or the like； each of R3, R4, R5, and R6 is hydrogen, C1-8 alkyl, or the like； X is sulfur or the like； Y is oxygen, a bond, or the like； p is 0 or 1； A is oxygen, CH2, N—NH2, or the like； when p is 1, B is phenyl, which can have a substituent； when p is 0, B is a condensed ring such as benzisoxazole, which can have a substituent； m is an integer of 1 to 4； and n is an integer of 0 to 5.
