PROBLEM TO BE SOLVED: To provide a drug containing a compound having an action of inhibiting an enzyme producing 20-HETE or a pharmaceutically acceptable salt thereof as an active ingredient. SOLUTION: A compound represented by the following formula [I]. In formula [I], ringA-R1 represents any of the structures represented by formula [III]. [Selection diagram] None【課題】20-HETEを産生する酵素を阻害する作用を有する化合物又はその製薬学的に許容される塩を有効成分として含有する医薬を提供する。【解決手段】下記式[I]で表される化合物。式[I]中、ringA-R1は、式[III]で表される構造のいずれかを示す。【選択図】なし