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New Classes of Carbazoles As Potential Multi-Functional Anti-Alzheimer's Agents Publisher Pubmed



Choubdar N1 ; Golshani M2 ; Jalilibaleh L2 ; Nadri H3 ; Kucukkilinc TT4 ; Ayazgok B4 ; Moradi A3 ; Moghadam FH5 ; Abdolahi Z3 ; Ameri A6 ; Salehian F2 ; Foroumadi A2 ; Khoobi M2
Authors
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Authors Affiliations
  1. 1. Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
  2. 2. The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, 1417614411, Iran
  3. 3. Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  4. 4. Hacettepe University, Faculty of Pharmacy, Department of Biochemistry, Ankara, Turkey
  5. 5. Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
  6. 6. Department of Medicinal Chemistry, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran

Source: Bioorganic Chemistry Published:2019


Abstract

Multi-Target approach is particularly promising way to drug discovery against Alzheimer's disease. In the present study, we synthesized a series of compounds comprising the carbazole backbone linked to the benzyl piperazine, benzyl piperidine, pyridine, quinoline, or isoquinoline moiety through an aliphatic linker and evaluated as cholinesterase inhibitors. The synthesized compounds showed IC50 values of 0.11–36.5 µM and 0.02–98.6 µM against acetyl- and butyrylcholinesterase (AChE and BuChE), respectively. The ligand-protein docking simulations and kinetic studies revealed that compound 3s could bind effectively to the peripheral anionic binding site (PAS) and anionic site of the enzyme with mixed-type inhibition. Compound 3s was the most potent compound against AChE and BuChE and showed acceptable inhibition potency for self- and AChE-induced Aβ1-42 aggregation. Moreover, compound 3s could significantly protect PC12 cells against H2O2-induced toxicity. The results suggested that the compounds 3s could be considered as a promising multi-functional agent for further drug discovery development against Alzheimer's disease. © 2019 Elsevier Inc.
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