This invention provides novel compounds that are modulators of gamma secretase. The compounds have the formula: Also disclosed are methods of modulating gamma secretase activity and methods of treating Alzheimer's disease using the compounds of formula (I).
                            这项发明提供了一种调节γ-分泌酶的新型化合物。这些化合物的
化学式为:同时还公开了调节γ-分泌酶活性的方法以及利用化合物(I)治疗阿尔茨海默病的方法。