A compound represented by formula (1) (in the formula: ring-D represents a three- to eight-membered hydrocarbon ring; Ra represents an optionally substituted amino C1-6 alkyl group or the like; Rb1 and Rb2 each independently represent a hydrogen atom, a halogen atom, or the like; Rc represents an optionally substituted C6-10 aryl group or the like; Rd represents a hydrogen atom or the like; and ring-Q represents a (hetero)aryl group or the like which may be substituted with a carboxyl group or the like) or a pharmaceutically acceptable salt thereof exhibits an excellent FXIa inhibitory activity, and is useful as a therapeutic agent against thrombosis or the like.
由式(1)代表的化合物(式中:环-D 代表三至八元烃环;Ra 代表任选取代的
氨基 C1-6 烷基或类似物;Rb1 和 Rb2 各自独立地代表氢原子、卤素原子或类似物;Rc 代表任选取代的 C6-10 芳基或类似物;Rd代表氢原子或类似物;环-Q代表可被羧基或类似物取代的(杂)芳基或类似物)或其药学上可接受的盐具有优异的 FXIa 抑制活性,可用作血栓或类似物的治疗剂。