Schiff bases gaining remarkable importance day by day in the current situation Schiff bases are found to be a valuable pharmacophore for the synthesis and development of various biologically active heterocyclic compounds. In recent past, we have reported various classes of compounds as enzyme inhibitors, in continuation; A series of 2-Mercaptobenzimidazole hydrazone derivatives (9-42) were synthesized through multistep reactions in high yields and evaluated for butyrylcholinesterase inhibition. In present study, 2-ethylthio benzimidazole was formed by the reaction of 2-Mercaptobenzimidazole with bromoethane. In the second step (2-(2-(ethylthio)benzimidazolyl)acetate) obtained by the reaction of 2-ethylthio benzimidazole with ethyl chloroacetate. In the third step, 2-(2-(ethylthio)benzimidazolyl)acetate was refluxed in methanol with hydrazine hydrate and get 2-((ethylthio)benzimidazolyl)acetohyrazide. In the last step, 2-((ethylthio)benzimidazolyl)acetohyrazide was reacted with different aldehydes in the presence of glacial acetic acid (catalyst) to get a series of 2-Mercaptobenzimidazole hydrazone derivatives. Product was characterized by 1H NMR and 13C NMR. These newly synthesized compounds showed varying degree of butyrylcholinesterase inhibition. Compound no. 15 with (IC50 = 25.10 and#177; 0.90 and#181;M) was found to be most active in the whole series. Similarly, compounds 42, 12, 40, 17, 22, 28 and 09 exhibited excellent activity with IC50 values are (IC50 = 25.36 and#177; 0.57 and#181;M, IC50 = 27.30 and#177; 0.52 and#181;M, IC50 = 34.31 and#177; 0.59 and#181;M, IC50 = 51.29 and#177; 0.64 and#181;M, IC50 = 54.52 and#177; 0.95 and#181;M, IC50 = 57.90 and#177; 0.45 and#181;M and IC50 = 60.93 and#177;0.67 and#181;M) respectively as compared to standard galantamine 18.13and#177;0.20 and#181;M. Molecular docking helped to find interactions between butyrylcholinesterase enzyme and test compounds. This study results that Schiff bases have been discovered a new class of butyrylcholinesterase inhibitors which have not been discovered earlier.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.