title: [Studies on chemical constituents of Illicium simonsii].
abstract: OBJECTIVE
  To study the chemical constituents from the active fractions against HIV in vitro, a crude ethanolic extract of Illicium simonsii.
  
  
  METHODS
  The compounds were isolated with column chromatography methods. MS and NMR spectroscopic methods were used to determine the structures of the compounds.
  
  
  RESULTS
  Seven compounds were isolated from the active fractions against HIV in vitro of the 90% ethanol extract and their structures were elucidated as (+)-catechin (1), (-)-epicatechin (2), (+)-catechin 3-O-alpha-L-rhamnopyranoside (3), kaempferol 3-O-alpha-L-rhamnopyranoside (4), quercetin 3-O-alpha-L-rhamnopyranoside (5), erigeside C (6) and daucosterol (7).
  
  
  CONCLUSIONS
  Seven compounds were isolated from this plant for the first time, but none of them exhibited active against HIV in vitro. Compounds 3 and 6 were isolated from this genus for the first time.
authors.affiliation: Beijing Key Laboratory of Bioactive Substances and Functional Foods, College of Arts & Science of Beijing Union University, Beijing 100083, China.
authors.forename: Xiao-Ya
authors.initials: XY
authors.lastname: Shang
authors.forename: Miao-Ru
authors.initials: MR
authors.lastname: Guo
authors.forename: Cong-Wei
authors.initials: CW
authors.lastname: Zhao
authors.forename: Shuai
authors.initials: S
authors.lastname: Li
mesh_terms: D002392:Catechin / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry; D029523:Illicium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D012210:Rhamnose / Q000031:analogs & derivatives / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D012855:Sitosterols; D000431:Ethanol; D002392:Catechin; D012210:Rhamnose; C011015:lyoniside