PROBLEM TO BE SOLVED: To provide a medicine for non-occlusive hypertrophic cardiomyopathy. SOLUTION: The non-occlusive hypertrophic cardiomyopathy of the present invention contains a compound represented by the following formula (1) or a salt thereof. [Figure 1] [Figure] Figure 8【課題】 非閉塞性肥大型心筋症用医薬を提供する。【解決手段】 本発明の非閉塞性肥大型心筋症は、下記式(1)で表される化合物またはその塩を含む。【化1】【選択図】 図8