The present invention relates to novel compounds of formula (I) and pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising said compounds, processes for making said compounds, and their use as medicaments for treatment and/or prevention of Aβ-related diseases.本發明係關於新穎式(I)化合物及其醫藥上可接受之鹽、包含該等化合物之醫藥組合物、製備該等化合物之方法,及該等化合物作為藥劑用於治療及/或預防Aβ相關疾病之用途