title: [Chemical constituents of Gentiana rhodantha].
abstract: OBJECTIVE
  To determine the chemical constituents of Gentiana rhodantha.
  
  
  METHODS
  To isolate the constituents, column chromatography over silica gel, MCI, Sephadex LH-20 and C18 reverse-phased silica gel were used. Spectroscopic methods were used to elucidate the structures of the isolated compounds.
  
  
  RESULTS
  Sixteen compounds were isolated and elucidated as ten phonemic compounds, namely 1,3,7,8-tetrahydroxylxanthone (1), rhodanthenone D (2), 1,3,6,7-tetrahydroxylxanthone (3), 1,3,7-trihydroxy-4,8-dimethoxyxanthone (4), quercetin (5), isoorientin (6), mangiferin (7), norswertianolin (8), gallic acid ethyl ester (9) and salicylic acid (10), and six triterpenes including alpha-amyrin (11), erythrodiol 3-O-palmitate (12), ursolic aldehyde (13), uvaol 3-O-acetyl (14), ursolic acid (15) and 2alpha-hydroxyursolic acid (16).
  
  
  CONCLUSIONS
  Compounds 4-6, 8, 10-12, 15 and 16 were isolated from this plant for the first time. Compounds 1 and 3 were obtained firstly from the genus Gentiana and compounds 9, 13-14 were firstly from the family Gentianaceae.
authors.affiliation: Department of Resources Science of Traditional Chinese Medicines, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Chen
authors.forename: Guo-Kai
authors.initials: GK
authors.lastname: Wang
authors.forename: Can
authors.initials: C
authors.lastname: Wu
authors.forename: Min-Jian
authors.initials: MJ
authors.lastname: Qin
mesh_terms: D002850:Chromatography, Gel; D056148:Chromatography, Reverse-Phase; D003911:Dextrans; D029965:Gentianaceae / Q000737:chemistry*; D013058:Mass Spectrometry; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification; D020156:Salicylic Acid / Q000737:chemistry / Q000302:isolation & purification; D058428:Silica Gel; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification; D000097245:Ursolic Acid
chemical_list: D003911:Dextrans; D009828:Oleanolic Acid; D010936:Plant Extracts; D011794:Quercetin; D020156:Salicylic Acid; D058428:Silica Gel; D014315:Triterpenes; D044004:Xanthones; D000097245:Ursolic Acid; C412810:2-hydroxyursolic acid; C013592:mangiferin; C056208:norswertianolin; C025614:sephadex; C036380:beta-amyrin