Synthesis of Novel 4-(Dimethylaminoalkyl) piperazine-1-carbodithioate Derivatives as Cholinesterase Inhibitors

Abstract

Background: Carbamate compounds have attracted a great deal of interest in medicinal chemistry due to their inhibition potential against cholinesterase enzymes. Method: Hence, this study was undertaken to synthesize new piperazine derivatives including dithiocarbamate moiety, which is the bioisoster of carbamate. Twenty eight 4-(dimethylaminoalkyl) piperazine-1-carbodithioate derivatives (3a-3n, 4a-4n) were synthesized. Chemical structures of these compounds were confirmed by spectral data. Ellman's assay was applied in order to investigate inhibitory potency of the compounds against Acetylcholinesterase (AChE) and Butyrylcholinesterase (BChE) enzymes. Results and Conclusion: It was determined that some of the compounds have remarkable activity on AChE. ADME (Absorption, distribution, metabolism, elimination) predictions were theoretically performed for all compounds in the series. Enzyme kinetics and molecular docking studies were carried out for the most active compound (3n) and nature of inhibition and interactions between enzyme and ligand were described.