Journal
BIOORGANIC CHEMISTRY
Volume 94, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bioorg.2019.103394
Keywords
Synthesis; Benzimidazole; Bis-Schiff bases; alpha-Glucosidase; SAR; Molecular docking
Funding
- Higher Education Commission of Pakistan [5721, 5092]
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Voglibose and acarbose are distinguished alpha-glucosidase inhibitors used for controlling of diabetes mellitus. Unfortunately, these distinguished and clinically used inhibitors have also numerous side effects. Subsequently, there is still needed to develop safer therapy. Despite of a broad spectrum of biological importance of benzimidazole, it is occasionally evaluated for alpha-glucosidase activity. Current study deals with the synthesis and biological screening of benzimidazole bearing bis-Schiff bases (1-19) for their alpha-glucosidase inhibitory activity. All analogues exhibited excellent to good inhibitory potential (IC50 = 2.20 +/- 0.1to 88.60 +/- 1.70 mu M) when compared with standard drug acarbose (IC50 = 38.45 +/- 0.80 mu M). A structure activity relationship has been established on the basis of electronic effects and position of different substituents present on phenyl ring. In order to rationalize the binding interactions of most active analogues with the active site of alpha-glucosidase enzyme, molecular docking study was conducted.
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