| abstract |
Disclosed is a drug for inhibiting the formation of amyloid β (Aβ) peptide and treating and / or preventing Aβ-related pathologies such as Alzheimer's disease, Down's syndrome and β-amyloid angiopathy. A compound represented by formula (I) or a pharmaceutically acceptable salt thereof. Cerebral amyloid angiopathy or hereditary cerebral hemorrhage, disorders related to cognitive impairment, such as MCI (“mild cognitive impairment”), Alzheimer's disease, memory loss, attention deficit symptoms related to Alzheimer's disease, related to diseases like Alzheimer's disease Treatment of neurodegeneration or mixed dementia derived from blood vessels and degeneration, dementia including presenile dementia, senile dementia and dementia related to Parkinson's disease, progressive supranuclear palsy or corticobasal degeneration A pharmaceutical composition comprising the compound or a pharmaceutically acceptable salt thereof for the prevention. [Selection figure] None |