Synthesis and evaluation of neuroprotective 4-O-substituted chrysotoxine derivatives as potential multifunctional agents for the treatment of Alzheimer's disease
A series of 4-O-substituted chrysotoxine (CTX) derivatives were designed, synthesized and evaluated as multifunctionalagents for the treatment of Alzheimer'sdisease (AD). In vitro assays indicated that four ring substituted compounds (2a, 2b, 3i and 3j) exhibited significant neuroprotective effects against Aβ25–35-induced toxicity in PC12 cells. The four compounds also inhibited self- and Cu2+-induced