A peroxisome proliferator activated receptor-α activator including a compound represented by the following General Formula (IA), a tautomer or a stereoisomer of the compound, a pharmaceutically acceptable salt thereof, or a solvate thereof (wherein R1､R2､R3､R6､R7and R8may be the same as or different from each other (provided that R1､R2､R3and R8does not constitute a ring) and represent a hydrogen atom, a halogen atom, an alkyl group a hydrogen atom, a halogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, a hydroxy group, an amino group, a carboxyl group, a mercapto group, an alkylsulfanyl group having 1 to 8 carbon atoms, a nitro group, or a cyano group).一種過氧化體增殖物活化受體α之活化劑，含有以下通式(I)表示之化合物、該化合物之互變異構物、立體異構物或其藥學上容許之鹽、或者其等之溶劑合物 (式中，R1、R2、R3、R6、R7及R8(但，R1、R2、R3及R8不構成環的情況)可相同或相異，表示氫原子、鹵素原子、碳數1~8之烷基、碳數1~8之烷氧基、經1~3個鹵素原子取代之碳數1~8的烷基、經1~3個鹵素原子取代之碳數1~8的烷氧基、羥基、胺基、羧基、巰基、碳數1~8之烷基硫醚基、硝基或氰基)。
