Present invention provides a compound of formula, (I) [Wherein, R 1 represents a halogen atom, R 3 and R 2 represents a hydrogen atom, R 4 is denotes a group represented by the formula may be substituted with a halogen atom, R 5 represents a phenyl group, m is an integer of 3 to 1, p in] an integer from 0 to 4 the salts, their pharmaceutically acceptable compound represented. None [Selection Figure]本発明は、式(I)[式中、R1はハロゲン原子等を示し、R2及びR3は水素原子等を示し、R4はで表される基等を示し、R5はハロゲン原子等で置換されていてもよい、フェニル基等を示し、mは1乃至3の整数を示し、pは0乃至4の整数を示す]で表される化合物又はその薬学的に許容される塩、に関する。【選択図】なし