Design, synthesis, and enzyme kinetics of novel benzimidazole and quinoxaline derivatives as methionine synthase inhibitors
摘要:
Methionine synthase catalyzes the transfer of a methyl group from 5-methyltetrahydrofolate to homocysteine, producing methionine and tetrahydrofolate. Benzimidazole and deazatetrahydrofolates derivatives have been shown to inhibit methionine synthase by competing with the substrate 5-methyltetrahydrofolate. In this study, a novel series of substituted benzimidazoles and quinoxalines were designed and assessed for inhibitory activity against purified rat liver methionine synthase using a radiometric enzyme assay. Compounds 3g, 3j, and 5c showed the highest activity against methionine synthase (IC50: 20 mu M, 18 mu M, 9 mu M, respectively). Kinetic analysis of these compounds using Lineweaver-Burk plots revealed characteristics of mixed inhibition for 3g and 5c; and uncompetitive inhibition for 3j. Docking study into a homology model of the rat methionine synthase gave insights into the molecular determinants of the activity of this class of compounds. The identification of these drug-like inhibitors could lead the design of the next generation modulators of methionine synthase. (C) 2013 Elsevier Ltd. All rights reserved.
Heating 3-formylchromone with a variety of benzimidazoles and imidazoles in N,N-dimethylformamide in the presence of chlorotrimethylsilane as a promoter and water-scavenger gave functionalized pyrido[1,2-a]benzimidazoles and imidazo[1,2-a]pyridines.
Effect of optimized structure and electronic properties of some benzimidazole derivatives on corrosion inhibition of mild steel in hydrochloric acid medium: Electrochemical and theoretical studies
作者:ALOKDUT DUTTA、SUJIT SANKAR PANJA、M M NANDI、DIPANKAR SUKUL
DOI:10.1007/s12039-015-0850-x
日期:2015.5
The corrosion inhibitive action of a few benzimidazole derivatives namely 2-(benzamido) ethylbenzimidazole (BAEBI), 2-(β-benzenesulphonamido) ethylbenzimidazole (BSAEBI), 2-(benzamido) methylbenzimidazole (BAMBI) and 2-(β-benzenesulphonamido) methylbenzimidazole (BSAMBI), towards mild steel in hydrochloric acid has been studied using potentiodynamic polarization and electrochemical impedance spectroscopic
Chemical entities that kill senescent cells for use in treating age-related disease
申请人:Unity Biotechnology, Inc.
公开号:US10195213B2
公开(公告)日:2019-02-05
Disclosed herein are compounds that are effective for treatment of various disease states associated with senescence. The disclosed compounds can be used to eliminate senescent cells for disease treatment. The dosing of the compounds includes both single administration and regimens of cycling dosages.
Nandi, M. M.; Ray, Ruma, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1986, vol. 25, p. 222 - 224
作者:Nandi, M. M.、Ray, Ruma
DOI:——
日期:——
Nandi, M. M.; Ray, Ruma; Mishra, A. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 4, p. 345 - 347