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Design, Synthesis, and Biological Evaluation of Novel 4-Oxobenzo[D]1,2,3-Triazin-Benzylpyridinum Derivatives As Potent Anti-Alzheimer Agents Publisher Pubmed



Hosseini F1 ; Ramazani A1 ; Mohammadikhanaposhtani M2 ; Barazandeh Tehrani M3 ; Nadri H4 ; Larijani B5 ; Mahdavi M5
Authors
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Authors Affiliations
  1. 1. Department of Chemistry, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
  2. 2. Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
  3. 3. Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  5. 5. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Bioorganic and Medicinal Chemistry Published:2019


Abstract

Novel 4-oxobenzo[d]1,2,3-triazin derivatives bearing pyridinium moiety 6a–q were synthesized and screened against acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). Most of the synthesized compounds showed good inhibitory activity against AChE. Among the synthesized compounds, the compound 6j exhibited the highest AChE inhibitory activity. It should be noted that these compounds displayed low anti-BuChE activity with the exception of the compound 6i, as it exhibited BuChE inhibitory activity more than donepezil. The kinetic study of the compound 6j revealed that this compound inhibited AChE in a mixed-type inhibition mode. This finding was also confirmed by the docking study. The latter study demonstrated that the compound 6j interacted with both the catalytic site and peripheral anionic site of the AChE active site. The compound 6j was also observed to have significant neuroprotective activity against H2O2-induced PC12 oxidative stress, but low activity against β-secretase. © 2019 Elsevier Ltd