The present invention provides a compound represented by formula [I] shown below or a pharmaceutically acceptable salt thereof that has an inhibitory effect on 20-HETE producing enzyme.(in formula [I] above, the structure represented by formula [II] below:represents any of the structures represented by formula group [III] below:R1, R2, R3, and R4 independently represent a hydrogen atom, a fluorine atom, methyl, or the like,R5 represents any of the structures represented by formula group [IV]: