PROBLEM TO BE SOLVED: To provide a novel therapeutic agent that binds to immunophilin FKBP12 and is useful in the prevention or treatment of alopecia.SOLUTION: This invention provides a preventive or therapeutic agent of alopecia containing a compound represented by the following formula or pharmaceutically acceptable salts thereof.COPYRIGHT: (C)2014,JPO&INPIT【課題】イムノフィリンFKBP12と結合する、脱毛症の予防又は治療に有用な新たな治療薬の提供。【解決手段】下記式で例示される化合物又はその医薬上許容される塩を含有することを特徴とする脱毛症の予防又は治療剤。【選択図】なし