A series of genistein derivatives were synthesized and evaluated as multifunctional anti-Alzheimer agents. The results showed that these derivatives had significant acetylcholinesterase (AChE) inhibitory activity; compound 5a exhibited the strongest inhibition to AChE with an IC value (0.034 μM) much lower than that of rivastigmine (6.53 μM). A Lineweaver-Burk plot and molecular modeling study showed that compound 5a targeted both the catalytic active site and the peripheral anionic site of AChE. These compounds also showed potent peroxy scavenging activity and metal-chelating ability. The compounds did not show obvious effect on HepG2 and PC12 cell viability at the concentration of 100 μM. Therefore, these genistein derivatives can be utilized as multifunctional agents for the treatment of AD.
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