The present invention provides a compound having excellent regulating action on blood lipid level. The present invention provides a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof, etc., wherein A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R 1 represents COOH or the like; each R 2 represents an alkyl or the like; each R 3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl, or the like; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R 4 , R 5 , R 6 , and R 7 represents H, an alkyl, or the like; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B 1 and B 2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.