Synthesis of benzimidazole derivatives and their antiglycation, antioxidant, antiurease and molecular docking study

Diabetes and ulcer are the major health problems all over the world. The present study reports synthesis and bioevaluation of 19 benzimidazole analogs in search of antiglycation, antioxidant and antiulcer agents. The synthetic analogs were characterized using 1H NMR, 13C NMR and HR-EIMS. All compounds were checked for their antiglycation, antiurease and antioxidant activities. The fluorophenyl benzimidazole analogs 12-14 strongly inhibited glycation with IC50 values ranging from 142 mu M to 193 mu M. The same fluorophenyl analogs (12-14) were also found to exhibit the highest antioxidant activity with IC50 values ranging from 1.2 mu M to 6.6 mu M which further highlights the significance of these bioactive analogs. The dihydroxyphenyl analogs 6-9 demonstrated the most potent enzyme inhibitory activity with IC50 values ranging from 3.10 mu M to 5.90 mu M. Molecular docking studies were performed on the active analogs to investigate their interactions with the urease enzyme and provide a plausible explanation for their observed urease inhibitory activity.