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9H-Carbazole Derivatives Containing the N-Benzyl-1,2,3-Triazole Moiety As New Acetylcholinesterase Inhibitors Publisher Pubmed



Akrami H1, 2 ; Mirjalili BF2 ; Khoobi M1 ; Moradi A3 ; Nadri H3 ; Emami S4 ; Foroumadi A1 ; Vosooghi M1 ; Shafiee A1
Authors
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Authors Affiliations
  1. 1. Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, 14176, Iran
  2. 2. Department of Chemistry, College of Science, Yazd University, Yazd, Iran
  3. 3. Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  4. 4. Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran

Source: Archiv der Pharmazie Published:2015


Abstract

A series of triazole-containing carbazole derivatives were designed as new anti-acetylcholinesterase (AChE) agents. The target compounds 6a-q were simply prepared via a one-pot three-component click reaction of N-propargyl-9H-carbazole, sodium azide, and an appropriate benzyl halide. The in vitro anti-cholinesterase assay showed that the unsubstituted benzyl derivative 6p along with the 2-F, 2-Me, 3-Me, 3-MeO, and 3-F analogs (6a, 6c, and 6g-i) had significant anti-AChE activity (IC50s≤3.8μM). Among them, the 2-methylbenzyl derivative 6c with an IC50 value of 1.9μM was the most active compound. The SAR studies revealed that small halogen atoms such as the fluorine atom or electron-donating groups such as methyl or methoxy at the ortho or meta positions of the benzyl pendent group could be tolerated or improved the anti-AChE activity. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.