title: [Studies on chemical constituents in fruits of Tibetan medicine Phyllanthus emblica].
abstract: OBJECTIVE
  To investigate the chemical constituents of Tibetan medicine Phyllanthus emblica.
  
  
  METHODS
  Various chromatographic techniques were employed for isolation and purification of the constituents, and the structures were elucidated by chemical and spectral analyses.
  
  
  RESULTS
  11 compounds were isolated and identified as gallic acid (I), ellagic acid (II), 1-O-galloyl-beta-D-glucose (III), 3,6-di-O-galloyl-D-glucose (IV), chebulinic acid (V), quercetin (VI), chebulagic acid (VII), corilagin (VIII), 3-ethylgallic acid (3-ethoxy-4,5-dihydroxy-benzoic acid, IX), isostrictiniin (X), 1,6-di-O-galloyl-beta-D-glucose (XI).
  
  
  CONCLUSIONS
  3-Ethylgallic acid (3-ethoxy-4,5-dihydroxy-benzoic acid) is a novel compound, and isostrictiniin was found from P. emblica for the first time.
authors.affiliation: School of Chinese Pharmacy, Beijing University of Traditional Chinese Medicine, Beijing 100102, China.
authors.forename: Lan-zhen
authors.initials: LZ
authors.lastname: Zhang
authors.forename: Wen-hua
authors.initials: WH
authors.lastname: Zhao
authors.forename: Ya-jian
authors.initials: YJ
authors.lastname: Guo
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Tu
authors.forename: Shu
authors.initials: S
authors.lastname: Lin
authors.forename: Lin-guang
authors.initials: LG
authors.lastname: Xin
mesh_terms: D004610:Ellagic Acid / Q000737:chemistry / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry; D005707:Gallic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D029842:Phyllanthus emblica / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D018609:Tibet
chemical_list: D004610:Ellagic Acid; D005707:Gallic Acid; C025525:3-O-methylgallic acid