In-vitro evaluation of some 4-aminopyridine Schiff bases as dual acetyl/butyryl cholinesterase inhibitor

Saurabh K. Sinha

Abstract

Schiff bases of 4-aminopyridine have been synthesized and evaluated for antiamnesic and cognition enhancing activity. In the present study to further understand the mechanism of action of these derivatives we have evaluated in-vitro acetycholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity. Enzyme kinetics studies were performed for all compounds to observe their nature of inhibition. The IC50 value of synthesized compounds showed maximum activity of compound 4APe compared to standard drug donepezil and rivastigmine whereas its kinetic analysis of enzyme inhibition demonstrated non-competitive inhibition for both enzymes AChE and BChE.

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