title: [Studies on the chemical constituents of Epimedium brevicornum].
abstract: OBJECTIVE
  To study the chemical constituents of Epimedium breviconum.
  
  
  METHODS
  Compounds were purificated with various chromatographic techniques such as silica vacuum liquid chromatography and Sephadex LH-20 column chromatography. Their structures were elucidated by physico-chemical methods and spectral analysis.
  
  
  RESULTS
  Ten compounds were obtained and indentified as (7R, 8S) 4,9-dihydroxyl-3,3'-dimethyoxyl-7, 8-dihydrobenzofunan-1'-propanolneolignan-9'-O-alpha-L-rhamnopyranoside (1), (7R, 8S, 8' R) 4, 4', 8', 9-tetrahydroxyl-3, 3'-dimethyoxyl-7, 9'-monoepoxylignan (2), (+)-cycloolivil (3), (3, 5, 7, 4')-tetrahydroxyl-8-isopentene group flavonoids-3-O-alpha-L-rhamnopyranoside (4), beta-sitosterol (5), p-hydroxybenzaldehyde (6), succinic acid (7) and p-hydroxyphenethyl (8).
  
  
  CONCLUSIONS
  Compound 1 is isolated from this genus for the first time. Compounds 2,3,5 -8 are isolated from the plant for the first time.
authors.affiliation: Pharmacy College of Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China. yyun@china.com.cn
authors.forename: Yun
authors.initials: Y
authors.lastname: Yang
authors.forename: Han-Juan
authors.initials: HJ
authors.lastname: Zhang
authors.forename: Zhen-Hua
authors.initials: ZH
authors.lastname: Zhu
authors.forename: Hai-Hua
authors.initials: HH
authors.lastname: He
mesh_terms: D015078:2-Hydroxyphenethylamine; D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D034181:Epimedium / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009005:Monosaccharides / Q000737:chemistry / Q000302:isolation & purification; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D019802:Succinic Acid / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C483807:(7S,8R)-4,9'-dihydroxyl-3, 3'-dimethyoxyl-7, 8-dihydrobenzofunan-1'-propanolneolignan-9-O-alpha- L-rhamnopyranoside; D001547:Benzaldehydes; D017705:Lignans; D009005:Monosaccharides; D010636:Phenols; D012855:Sitosterols; C542655:cycloolivil; C025473:gamma-sitosterol; D015078:2-Hydroxyphenethylamine; D019802:Succinic Acid; C011483:4-hydroxybenzaldehyde