Synthesis, in vitro α-glucosidase inhibitory activity and molecular docking studies of new thiazole derivatives

Current study based on the synthesis of new thiazole derivatives via "one pot" multicomponent reaction, evaluation of their in vitro alpha-glucosidase inhibitory activities, and in silico studies. All synthetic compounds were fully characterized by H-1 NMR, C-13 NMR and EIMS. CHN analysis was also performed. These newly synthesized compounds showed activities in the range of IC50 = 9.06 +/- 0.10-82.50 +/- 1.70 mu M as compared to standard acarbose (IC50 = 38.25 +/- 0.12 mu M). It is worth mentioning that most of the compounds such as 1 (IC50 = 23.60 +/- 0.39 mu M), 2 (IC50 = 22.70 +/- 0.60 mu M), 3 (IC50 = 22.40 +/- 0.32 mu M), 4 (IC50 = 26.5 +/- 0.40 mu M), 6 (IC50 = 34.60 +/- 0.60 mu M), 7 (IC50 = 26.20 +/- 0.43 mu M), 8 (IC50 = 14.06 +/- 0.18 mu M), 9 (IC50 = 17.60 +/- 0.28 mu M), 10 (IC50 = 27.16 +/- 0.41 mu M), 11 (IC50 = 19.16 +/- 0.19 mu M), 12 (IC50 = 9.06 +/- 0.10 mu M), 13 (IC50 = 12.80 +/- 0.21 mu M), 14 (IC50 = 11.94 +/- 0.18 mu M), 15 (IC50 = 16.90 +/- 0.20 mu M), 16 (IC50 = 12.60 +/- 0.14 mu M), 17 (IC50 = 16.30 +/- 0.29 mu M), and 18 (IC50 = 32.60 +/- 0.61 mu M) exhibited potent inhibitory potential. Molecular docking study was performed in order to understand the molecular interactions between the molecule and enzyme. Newly identified a-glucosidase inhibitors except few were found to be completely non-toxic. (C) 2016 Elsevier Inc. All rights reserved.