Disclosed is a compound represented by formula (1) or a pharmacologically acceptable salt thereof. (In the formula, A represents a group that is represented by formula (A-1); R1a and R1b may be the same or different and each independently represents a C1-6 alkyl group which may be substituted by one to three halogen atoms; m and n each independently represents an integer of 0-5; X1 represents a hydroxyl group or an aminocarbonyl group; Z1 represents a single bond or the like; and R2 represents an optionally substituted C1-6 alkyl group, an optionally substituted C6-10aryl group or the like.)
本发明公开了一种由式(1)表示的化合物或其药理上可接受的盐。(式中,A代表由式(A-1)表示的基团;R1a和R1b可以相同或不同,各自独立地代表可被一至三个卤素原子取代的C1-6烷基;m和n各自独立地代表0-5的整数;X1代表羟基或
氨基羰基;Z1代表单键或类似物;R2代表任选取代的C1-6烷基、任选取代的C6-10芳基或类似物)。