title: [Studies on chemical constituents of Uvaria macrophylia].
abstract: OBJECTIVE
  To study the chemical constituents from Uvaria macrophylla Roxb. (Annonaceae).
  
  
  METHODS
  Various chromatography techniques were used to separate and purify the constituents. Their structures were elucidated by UV, IR, MS, 1HNMR, 13CNMR, 1H-1H COSY, HMQC and HMBC spectral analysis.
  
  
  RESULTS
  Seven compounds have been isolated from the CHCl3 extract of the roots of the U. macrophylla. They were identified as macrophyllin (1), onysilin (2), taraxerol (3), 3,5-dimethoxy benzyl benzoic acid ester (4), benzoic acid (5), beta-sitosterol (6) and daucosterol (7).
  
  
  CONCLUSIONS
  Compound 1 is a new compound. Compounds 2-7 were obtained from this plant for the first time.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.
authors.forename: Hai-ling
authors.initials: HL
authors.lastname: Zhang
authors.forename: Si
authors.initials: S
authors.lastname: Wang
authors.forename: Ruo-yun
authors.initials: RY
authors.lastname: Chen
authors.forename: De-quan
authors.initials: DQ
authors.lastname: Yu
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D031046:Uvaria / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D012855:Sitosterols; C479286:macrophyllol; C025473:gamma-sitosterol; D009828:Oleanolic Acid; C005802:taraxerol