Novel synthesis of dihydropyrimidines for α-glucosidase inhibition to treat type 2 diabetes: in vitro biological evaluation and in silico docking

Bioorg Chem. 2014 Jun:54:96-104. doi: 10.1016/j.bioorg.2014.05.003. Epub 2014 May 15.

Abstract

A convenient and efficient new method has been established for the synthesis of dihydropyrimidines by inexpensive and non-toxic N-acetyl glycine (NAG) catalysed reaction of aromatic aldehydes with ethyl acetoacetate and urea/thiourea. This method is applicable for various substituted aldehydes as well as urea and thiourea. It has also been used to synthesize bicyclic oxygen-bridged pyrimidine derivatives (4d, 4j). The biological assay revealed that the majority of compounds synthesized displayed modest inhibitory activity against α-glucosidase at low micro-molar concentrations. Molecular docking studies were also performed on the most active compound, 4f (with IC50 value 112.21±0.97 μM), to show the enzyme - inhibitor interactions.

Keywords: Acarbose; Biginelli reaction; Dihydropyrimidine; N-acetyl glycine; α-Glucosidase inhibitors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Crystallography, X-Ray
  • Diabetes Mellitus, Type 2 / drug therapy*
  • Dose-Response Relationship, Drug
  • Glycoside Hydrolase Inhibitors / chemical synthesis
  • Glycoside Hydrolase Inhibitors / chemistry
  • Glycoside Hydrolase Inhibitors / pharmacology*
  • Molecular Docking Simulation*
  • Molecular Sequence Data
  • Molecular Structure
  • Pyrimidines / chemical synthesis
  • Pyrimidines / chemistry
  • Pyrimidines / pharmacology*
  • Saccharomyces cerevisiae / enzymology
  • Sequence Alignment
  • Structure-Activity Relationship
  • alpha-Glucosidases / metabolism*

Substances

  • 1,4-dihydropyrimidine
  • Glycoside Hydrolase Inhibitors
  • Pyrimidines
  • alpha-Glucosidases