The present invention relates to novel compounds of formula (I) and their pharmaceutical compositions. In addition, the present invention relates to therapeutic methods for the treatment and/or prevention of Aβ-related pathologies such as Downs syndrome, β-amyloid angiopathy such as but not limited to cerebral amyloid angiopathy or hereditary cerebral hemorrhage, disorders associated with cognitive impairment such as but not limited to MCI (“mild cognitive impairment”), Alzheimer Disease, memory loss, attention deficit symptoms associated with Alzheimer disease, neurodegeneration associated with diseases such as Alzheimer disease or dementia including dementia of mixed vascular and degenerative origin, pre-senile dementia, senile dementia and dementia associated with Parkinson's disease, progressive supranuclear palsy or cortical basal degeneration.
本发明涉及式(I)的新化合物及其制药组合物。此外,本发明涉及治疗和/或预防与Aβ相关的病理学,如唐氏综合症,β-淀粉样蛋白血管病,如但不限于脑淀粉样血管病或遗传性脑出血,与认知障碍有关的疾病,如但不限于轻度认知障碍(MCI),阿尔茨海默病,记忆丧失,与阿尔茨海默病相关的注意力缺陷症状,与阿尔茨海默病或痴呆症等神经退行性疾病相关的神经退化,包括混合血管性和退行性起源的痴呆、早老性痴呆、老年性痴呆和与帕
金森病、进行性核上性麻痹或皮层基底节变性相关的痴呆的治疗方法。