Design, synthesis and evaluation of new thiazole-piperazines as acetylcholinesterase inhibitors


YURTTAŞ L., KAPLANCIKLI Z. A., ÖZKAY Y.

JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY, vol.28, no.5, pp.1040-1047, 2013 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 5
  • Publication Date: 2013
  • Doi Number: 10.3109/14756366.2012.709242
  • Journal Name: JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1040-1047
  • Keywords: Anticholinesterase activity, Elmann's method, thiazole, piperazine, ALZHEIMERS-DISEASE, DERIVATIVES
  • Bilecik Şeyh Edebali University Affiliated: No

Abstract

In this study, some new 2-(4-substituted piperazine-1-yl)-N-[4-(2-methylthiazol-4-yl)phenyl]acetamide derivatives were synthesized. The synthesized compounds were screened for their anticholinesterase activity on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes by in vitro Ellman's method. The structural elucidation of the compounds was performed by using IR, H-1-NMR, C-13-NMR and FAB(+)-MS spectral data and elemental analyses results. Biological assays revealed that at 0.1 mu M concentration, the most active compounds against AChE were 5n, 5o and 5p that indicated 96.44, 99.83 and 89.70% inhibition rates, respectively. Besides, IC50 value of the compound 5o was determined as 0.011 mu M, whereas IC50 value of standard drug donepezil was 0.054 mu M. The synthesized compounds did not show any notable inhibitory activity against BChE.