title: [Chemical composition of fructus Liquidambaris--lulutong].
abstract: OBJECTIVE
  To study the chemical composition in the fruits of Liquidambar formana Hance.
  
  
  METHODS
  Various column chromatographic techniques were used to separate and purify the constituents. Their physical and chemical properties and spectral data were measured for structural elucidation.
  
  
  RESULTS
  Eleven compounds were isolated and identified as beta-sitosterol (1), 3-oxo-11 alpha, 12 alpha-epoxyleanan-28, 13 beta-olide (2), 3-oxo-12 alpha-hydroxy-oleanan-28, 13 beta-olide (3), 3 alpha-acetyloxy-25-hydroxyolean-12-en-28-oic acid (4), oleanolic acid (5), ursolic acid (6), daucosterol (7), betulonic acid (8), gallic acid (9), nonacosane (10) and n-triacontanoic acid (11).
  
  
  CONCLUSIONS
  Among the isolated constituents, compound 4 is new compound, compound 3 is firstly isolated from the natural product and compound 5, 6, 7, 9, 10 and 11 are isolated from LuLuTong for the first time.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing 100700, China.
authors.forename: Chun
authors.initials: C
authors.lastname: Li
authors.forename: Yu-ru
authors.initials: YR
authors.lastname: Sun
authors.forename: You-fu
authors.initials: YF
authors.lastname: Sun
mesh_terms: D005638:Fruit / Q000737:chemistry; D031317:Liquidambar / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C479296:3-acetyloxy-25-hydroxyolean-12-en-28-oic acid; C479297:3-oxo-11,12-epoxyoleanan-28,13-olide; D009828:Oleanolic Acid