Optimization of O3-acyl kojic acid derivatives as potent and selective human neutrophil elastase inhibitors

J Med Chem. 2013 Dec 12;56(23):9802-6. doi: 10.1021/jm4011725. Epub 2013 Nov 20.

Abstract

Human neutrophil elastase (HNE) is an attractive target for treating chronic and acute inflammatory lung diseases. An optimization campaign of the kojic acid scaffold to develop new potent HNE inhibitors is reported. O3-Pivaloyl derivatives were shown to be the most potent inhibitors with IC5o values down to 80 nM. These compounds presented excellent selectivity and cytotoxicity profiles with suitable ligand efficiency.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line
  • Drug Stability
  • Humans
  • Inhibitory Concentration 50
  • Kinetics
  • Leukocyte Elastase / metabolism*
  • Microsomes, Liver / metabolism
  • Molecular Docking Simulation
  • Proteinase Inhibitory Proteins, Secretory / chemical synthesis*
  • Proteinase Inhibitory Proteins, Secretory / pharmacology
  • Pyridones / chemical synthesis
  • Pyridones / pharmacology
  • Pyrones / chemistry*
  • Rats
  • Structure-Activity Relationship

Substances

  • Proteinase Inhibitory Proteins, Secretory
  • Pyridones
  • Pyrones
  • kojic acid
  • Leukocyte Elastase