Structure-based design of irreversible, tripeptidyl human rhinovirus 3C protease inhibitors containing N-methyl amino acids

Bioorg Med Chem Lett. 1999 Aug 2;9(15):2189-94. doi: 10.1016/s0960-894x(99)00368-6.

Abstract

Tripeptide-derived molecules incorporating N-methyl amino acid residues and C-terminal Michael acceptor moieties were evaluated as irreversible inhibitors of the cysteine-containing human rhinovirus 3C protease (3CP). Such compounds displayed good 3CP inhibition activity (k(obs)/[I] up to 610,000 M(-1) s(-1)) and potent in vitro antiviral properties (EC50 approaching 0.03 microM) when tested against HRV serotype-14.

MeSH terms

  • 3C Viral Proteases
  • Cysteine Endopeptidases / drug effects
  • Cysteine Endopeptidases / metabolism*
  • Drug Design
  • Humans
  • Peptides / chemical synthesis
  • Peptides / pharmacology
  • Protease Inhibitors / chemical synthesis*
  • Protease Inhibitors / pharmacology
  • Rhinovirus / drug effects
  • Rhinovirus / enzymology*
  • Structure-Activity Relationship
  • Viral Proteins*

Substances

  • Peptides
  • Protease Inhibitors
  • Viral Proteins
  • Cysteine Endopeptidases
  • 3C Viral Proteases