DAO and early-onset autosomal dominant Alzheimer disease: Additionally, we evaluated compounds for some activities associated with oxidative stress–inhibitory activity against d-amino acid oxidase (DAAO, a potential target in schizophrenia treatment) and for the inhibition of two enzymes important in pathophysiology of Alzheimer’s disease: acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE).