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Bioorganic & medicinal chemistry letters

Novel oxoisoaporphine-based inhibitors of acetyl- and butyrylcholinesterase and acetylcholinesterase-induced beta-amyloid aggregation.


PMID 22341944

Abstract

A series of novel oxoisoaporphine-based inhibitors (10-aminoalkylamino-1-azabenzanthrone Ar-NH(CH(2))(n)NR(1)R(2)) of acetylcholinesterase (AChE) has been designed, synthesized, and tested for their ability to inhibit AChE, butyrylcholinesterase (BChE) and AChE-induced β-amyloid (Aβ) aggregation. The synthetic compounds exhibited high AChE inhibitory activity with IC(50) values in the submicromolar range in most cases. Non-competitive binding mode was found for these derivatives by the graphical analysis of steady-state inhibition data. Moreover, all compounds exhibit significant inhibitory activity on AChE-induced Aβ aggregation with inhibitory potency from 54.5% to 93.5%. Finally, six out of twelve synthetic compounds were predicted to be able to cross the blood-brain barrier (BBB) to reach their targets in the central nervous system (CNS) according to a parallel artificial membrane permeation assay for BBB. The result encourages us to study this class of compounds thoroughly and systematically.

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