PROBLEM TO BE SOLVED: To provide a compound useful in a treatment of malaria.SOLUTION: There are provided a compound of the formula (VII) and a pharmaceutically acceptable salt thereof. In the formula, R8 and R9 are each independently halogen or C1 to C6 heteroalkyl, and o and p are independently an integer of 0 to 5.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】マラリアの治療に有用な化合物の提供。【解決手段】式(VII)の化合物、並びに製薬上許容しうるその塩。(式中、R8及びR9は、それぞれ独立にハロゲン又はC1~C6ヘテロアルキルであり、o及びpは、独立に0~5の整数である。)【選択図】なし 150 151 151