title: [Chemical constituents from Hedyotis diffusa].
abstract: OBJECTIVE
  To investigate the chemical constituents from Hedyotis diffusa.
  
  
  METHODS
  The compounds were isolated and purified by various chromatographic techniques and identified by their physicochemical properties and spectral data.
  
  
  RESULTS
  Eight compounds had been reported in last paper, and this time eight more compounds were isolated and identified as 6-hydroxystigmasta-4,22-dien-3-one (1), 3-hydroxystigmasta-4,22-dien-7-one (2), 2-hydroxy-3-methylanthraquinone (3), 2,6-dihydroxy-3-methyl-4-methoxyanthraquinone (4), iso-scutellarein (5), isoetin (6), aesculetin (7), gypsogenic acid (8).
  
  
  CONCLUSIONS
  Compounds 1-3, 5-8 were obtained from the genus Hedyotis for the first time.
authors.affiliation: Department of Traditional Chinese Medicinal Chemistry, Jiangsu Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Weihua
authors.initials: W
authors.lastname: Huang
authors.forename: Youbin
authors.initials: Y
authors.lastname: Li
authors.forename: Jianqin
authors.initials: J
authors.lastname: Jiang
mesh_terms: D032064:Hedyotis / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000302:isolation & purification
chemical_list: D009930:Organic Chemicals