Design and synthesis of arylaminoethyl amides as noncovalent inhibitors of cathepsin S. Part 1

Bioorg Med Chem Lett. 2005 Nov 15;15(22):4979-84. doi: 10.1016/j.bmcl.2005.08.017. Epub 2005 Sep 23.

Abstract

A series of Nalpha-acyl-alpha-amino acid-(arylaminoethyl)amides were found to be potent and noncovalent cathepsin S inhibitors. Compound 20 possessed high cathepsin S affinity (Ki=3.3 nM) and showed excellent selectivity over cathepsin K, L, F, and V. Molecular modeling, design, synthesis, and in vitro activity are described.

MeSH terms

  • Amides / chemical synthesis
  • Amides / chemistry*
  • Amination
  • Binding Sites
  • Cathepsin K
  • Cathepsin L
  • Cathepsins / antagonists & inhibitors*
  • Cathepsins / chemistry
  • Cathepsins / metabolism
  • Cysteine Endopeptidases / chemistry
  • Cysteine Endopeptidases / metabolism
  • Drug Design*
  • Ethanol / chemistry*
  • Models, Molecular
  • Protease Inhibitors / chemical synthesis*
  • Protease Inhibitors / chemistry
  • Protease Inhibitors / pharmacology*
  • Protein Structure, Tertiary
  • Structure-Activity Relationship

Substances

  • Amides
  • Protease Inhibitors
  • Ethanol
  • Cathepsins
  • Cysteine Endopeptidases
  • Cathepsin L
  • cathepsin S
  • Cathepsin K