Archiv der Pharmazie (Weinheim) 2013-08-01

Synthesis and biological evaluation of a series of dithiocarbamates as new cholinesterase inhibitors.

Mehlika D Altıntop, A Selen Gurkan-Alp, Yusuf Ozkay, Zafer A Kaplancıklı

Index: Arch. Pharm. (Weinheim) 346(8) , 571-6, (2013)

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Abstract

In the present paper, a novel series of dithiocarbamates was synthesized via the treatment of 4-(trifluoromethyl)benzyl chloride with appropriate sodium salts of N,N-disubstituted dithiocarbamic acids. The chemical structures of the compounds were elucidated by (1) H NMR, mass spectral data, and elemental analyses. Each derivative was evaluated for its ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) using a modification of Ellman's spectrophotometric method. The most potent AChE inhibitor was found as compound 2g (IC50  = 0.53 ± 0.001 µM) followed by compounds 2f (IC50  = 0.74 ± 0.001 µM) and 2j (IC50  = 0.89 ± 0.002 µM) when compared with donepezil (IC50  = 0.048 ± 0.001 µM). Compounds 2f and 2g were more effective than donepezil (IC50  = 7.88 ± 0.52 µM) on BuChE inhibition. Compounds 2f and 2g exhibited the inhibitory effect on BuChE with IC50 values of 1.39 ± 0.041 and 3.64 ± 0.072 µM, respectively. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.