The present invention provides a compound represented by the formula (I):
or a pharmacologically acceptable salt thereof, wherein Ar
1
represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar
2
represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X
1
represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by Aβ.
本发明提供了一种化合物,其由公式(I)表示:或其药学上可接受的盐,其中Ar1表示一种
咪唑基团,该基团可以被C1-6烷基或类似物取代,Ar2表示一种苯基团,该基团可以被C1-6烷氧基或类似物取代,X1表示双键或类似物,Het表示一种
咪唑基团,该基团可以被C1-6烷基或类似物取代,该化合物作为治疗或预防由Aβ引起的疾病的药物有效。