Synthesis, density functional theory and kinetic studies of aminopyridine based α-glucosidase inhibitors

Future Med Chem. 2023 Oct;15(19):1757-1772. doi: 10.4155/fmc-2023-0123. Epub 2023 Oct 16.

Abstract

Aims: The current study aimed to develop new thiourea derivatives as potential α-glucosidase inhibitors for the management of hyperglycemia in patients of Type 2 diabetes, with a focus on identifying safer and more effective antidiabetic agents. Materials & methods: New thiourea derivatives (1-16) were synthesized through single-step chemical transformation and evaluated for in vitro α-glucosidase inhibition. Kinetic studies identified the mode of inhibition, free energy and type of interactions were analyzed through density functional theory and molecular docking. Results & conclusion: Compound 5 was identified as the most potent, noncompetitive and noncytotoxic inhibitor of α-glucosidase enzyme with a half-maximal inhibitory concentration of 24.62 ± 0.94 μM. Computational studies reinforce experimental results, demonstrating significant enzyme interactions via hydrophobic and π-π stacking forces.

Keywords: 2-amino-5-(trifluoromethyl) pyridine; 2-aminopyridine; cytotoxicity; diabetes; α-glucosidase.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aminopyridines
  • Density Functional Theory
  • Diabetes Mellitus, Type 2* / drug therapy
  • Glycoside Hydrolase Inhibitors* / chemistry
  • Glycoside Hydrolase Inhibitors* / pharmacology
  • Humans
  • Kinetics
  • Molecular Docking Simulation
  • Molecular Structure
  • Structure-Activity Relationship
  • Thiourea / pharmacology
  • alpha-Glucosidases / metabolism

Substances

  • Glycoside Hydrolase Inhibitors
  • alpha-Glucosidases
  • Aminopyridines
  • Thiourea