Novel beta-lactam derivatives: potent and selective inhibitors of the chymotrypsin-like activity of the human 20S proteasome

Bioorg Med Chem Lett. 2007 Jan 15;17(2):358-62. doi: 10.1016/j.bmcl.2006.10.047. Epub 2006 Oct 24.

Abstract

A series of beta-lactam derivatives has been designed and synthesized to inhibit the chymotrypsin-like activity of the human 20S proteasome. The most potent compounds of this new structural class of beta-subunit selective 20S proteasome inhibitors exhibit IC50 values in the low-nanomolar range and show good selectivity over the trypsin-like and post-glutamyl-peptide hydrolytic activities of the enzyme.

MeSH terms

  • Chymotrypsin / antagonists & inhibitors*
  • Crystallography, X-Ray
  • Drug Design
  • Humans
  • Models, Molecular
  • Peptides / chemistry
  • Proteasome Inhibitors*
  • Structure-Activity Relationship
  • Trypsin Inhibitors / chemical synthesis*
  • Trypsin Inhibitors / pharmacology*
  • beta-Lactams / chemical synthesis*
  • beta-Lactams / pharmacology*

Substances

  • Peptides
  • Proteasome Inhibitors
  • Trypsin Inhibitors
  • beta-Lactams
  • Chymotrypsin