title: Isolation and structure of SCH 351633: a novel hepatitis C virus (HCV) NS3 protease inhibitor from the fungus Penicillium griseofulvum.
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.
authors.affiliation: Schering-Plough Research Institute, Kenilworth, NJ 07033, USA.
authors.forename: M
authors.initials: M
authors.lastname: Chu
authors.forename: R
authors.initials: R
authors.lastname: Mierzwa
authors.forename: L
authors.initials: L
authors.lastname: He
authors.forename: A
authors.initials: A
authors.lastname: King
authors.forename: M
authors.initials: M
authors.lastname: Patel
authors.forename: J
authors.initials: J
authors.lastname: Pichardo
authors.forename: A
authors.initials: A
authors.lastname: Hart
authors.forename: N
authors.initials: N
authors.lastname: Butkiewicz
authors.forename: M S
authors.initials: MS
authors.lastname: Puar
mesh_terms: D000998:Antiviral Agents / Q000737:chemistry / Q000494:pharmacology; D020128:Inhibitory Concentration 50; D007783:Lactones / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D008970:Molecular Weight; D010407:Penicillium / Q000737:chemistry*; D015842:Serine Proteinase Inhibitors / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D017361:Viral Nonstructural Proteins / Q000037:antagonists & inhibitors*; D012697:Serine Endopeptidases; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases
chemical_list: D000998:Antiviral Agents; D007783:Lactones; D015842:Serine Proteinase Inhibitors; D017361:Viral Nonstructural Proteins; C084422:NS3 protein, hepatitis C virus; D012697:Serine Endopeptidases; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases; C121285:SCH 351633