title: Antiviral compounds from traditional Chinese medicines Galla Chinese as inhibitors of HCV NS3 protease.
abstract: Under the guidance of bioassay, the EtOAc extract fraction of the Traditional Chinese Medicine (TCM) Galla Chinese was found to be efficient in inhibiting the NS3 protease of HCV and purified the fraction to get three polyphenol compounds 1,2,6-tri-O-galloyl-beta-D-glucose (1), 1,2,3,6-tetra-O-galloyl-beta-D-glucose (2), and 1,2,3,4,6-penta-O-galloyl-beta-D-glucose (3), which were identified as inhibitors of Hepatitis C Virus (HCV) NS3 protease. Compounds 1, 2, and 3 inhibited HCV NS3 protease with IC50 of 1.89, 0.75, and 1.60 microM, respectively.
authors.affiliation: College of Chemistry and Molecular Engineering, Yangshengtang Nature Medicine Laboratory, Peking University, Beijing 100871, China.
authors.forename: Deliang
authors.initials: D
authors.lastname: Duan
authors.forename: Zhengquan
authors.initials: Z
authors.lastname: Li
authors.forename: Hongpeng
authors.initials: H
authors.lastname: Luo
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Lirong
authors.initials: L
authors.lastname: Chen
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Xu
mesh_terms: D000998:Antiviral Agents / Q000737:chemistry / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000494:pharmacology; D008516:Medicine, Chinese Traditional; D008958:Models, Molecular; D015394:Molecular Structure; D011480:Protease Inhibitors / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship; 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; D004365:Drugs, Chinese Herbal; D011480:Protease 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