According to the invention there is provided a compound of formula I or a pharmaceutically acceptable salt or hydrate thereof; wherein the variables are as defined herein. The compounds selectively attenuate the production of Aβ42 and hence are useful in treatment of Alzheimer's disease and related conditions.
根据本发明提供了一种I式化合物或其药学上可接受的盐或
水合物;其中变量如本文所定义。该化合物有选择性地减弱Aβ42的产生,因此在治疗阿尔茨海默病和相关疾病方面是有用的。