Synthesis of new acylsulfamoyl benzoxaboroles as potent inhibitors of HCV NS3 protease

Bioorg Med Chem Lett. 2010 Dec 15;20(24):7493-7. doi: 10.1016/j.bmcl.2010.10.007. Epub 2010 Oct 30.

Abstract

HCV NS3/4A serine protease is essential for the replication of the HCV virus and has been a clinically validated target. A series of HCV NS3/4A protease inhibitors containing a novel acylsulfamoyl benzoxaborole moiety at the P1' region was synthesized and evaluated. The resulting P1-P3 and P2-P4 macrocyclic inhibitors exhibited sub-nanomolar potency in the enzymatic assay and low nanomolar activity in the cell-based replicon assay. The in vivo PK evaluations of selected compounds are also described.

MeSH terms

  • Animals
  • Boron Compounds / chemical synthesis
  • Boron Compounds / chemistry*
  • Boron Compounds / pharmacokinetics
  • Catalytic Domain
  • Hepacivirus / drug effects
  • Hepacivirus / enzymology*
  • Male
  • Models, Molecular
  • Protease Inhibitors / chemical synthesis*
  • Protease Inhibitors / chemistry
  • Protease Inhibitors / pharmacokinetics
  • Rats
  • Rats, Sprague-Dawley
  • Viral Nonstructural Proteins / antagonists & inhibitors*
  • Viral Nonstructural Proteins / metabolism*
  • Virus Replication / drug effects

Substances

  • Boron Compounds
  • NS3 protein, hepatitis C virus
  • Protease Inhibitors
  • Viral Nonstructural Proteins