To provide a novel low-molecular-weight compound that inhibits the production of amyloid-β (Aβ ). A compound represented by the formula [I]: or a pharmacologically acceptable salt or ester thereof, wherein R1 and R2 are the same or different and each represent a substituent selected from the following Substituent Group a1; m represents an integer of 0 to 3; n represents an integer of 0 to 2; X1 represents a single bond or the like; X2 represents a single bond or the like; Ring A represents a five-membered aromatic heterocyclic group or the like which contains two or more nitrogen atoms and may have 1 to 3 substituents selected from the following Substituent Group b1; and Ring B represents a monocyclic or fused cyclic aromatic ring group such as the formula [2] which may have 1 to 3 substituents selected from the following Substituent Group c1, is effective as a therapeutic agent for a disease such as Alzheimer's disease. Substituent Group a1: a C1-6 alkyl group and the like Substituent Group b1: a C1-6 alkyl group and the like Substituent Group c1: an amino group and the like
提供一种新型低分子量化合物,该化合物能够抑制淀粉样蛋白-β(Aβ)的产生。表示为
化学式[I]的化合物,或其药理学上可接受的盐或
酯,其中R1和R2相同或不同,每个代表以下取代基团a1中选择的取代基;m代表0到3的整数;n代表0到2的整数;X1代表单键或类似物;X2代表单键或类似物;环A代表含有两个或更多
氮原子并且可能具有1到3个取代基团b1中选择的取代基的五元芳香杂环基团或类似物;环B代表可能具有1到3个取代基团c1中选择的取代基的单环或融合环芳香环基团,如
化学式[2]所示,对于阿尔茨海默病等疾病具有治疗作用。取代基团a1:C1-6烷基基团等;取代基团b1:C1-6烷基基团等;取代基团c1:
氨基团等。