Isolation and structure of SCH 351633: a novel hepatitis C virus (HCV) NS3 protease inhibitor from the fungus Penicillium griseofulvum

Bioorg Med Chem Lett. 1999 Jul 19;9(14):1949-52. doi: 10.1016/s0960-894x(99)00321-2.

Abstract

A new hepatitis C virus (HCV) protease inhibitor designated as Sch 351633 (1) was isolated from the fungus, Penicillium griseofulvum. Structure elucidation of 1 was accomplished by analysis of spectroscopic data, which determined compound 1 to be a bicyclic hemiketal lactone. Compound 1 exhibited inhibitory activity in the HCV protease assay with an IC50 value of 3.8 microg/mL.

MeSH terms

  • Antiviral Agents / chemistry
  • Antiviral Agents / pharmacology
  • Inhibitory Concentration 50
  • Lactones / chemistry*
  • Lactones / isolation & purification
  • Lactones / pharmacology*
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Molecular Weight
  • Penicillium / chemistry*
  • Serine Proteinase Inhibitors / chemistry*
  • Serine Proteinase Inhibitors / isolation & purification
  • Serine Proteinase Inhibitors / pharmacology*
  • Viral Nonstructural Proteins / antagonists & inhibitors*

Substances

  • Antiviral Agents
  • Lactones
  • NS3 protein, hepatitis C virus
  • SCH 351633
  • Serine Proteinase Inhibitors
  • Viral Nonstructural Proteins