PROBLEM TO BE SOLVED: To provide a novel composition for preventing and/or treating a caspase-related disease.SOLUTION: The invention relates to selective inhibitors of caspases such as the compound represented by the formula in the figure.SELECTED DRAWING: None【課題】カスパーゼ関連疾患の予防および/または治療に係る新規化合物の提供。【解決手段】下式で示される化合物等のカスパーゼの選択的阻害剤。【選択図】なし