title: [Studies on the chemical constituents of Pharbitis purpurea].
abstract: OBJECTIVE
  To study the chemical constituents of Pharbitis purpurea.
  
  
  METHODS
  The constituents were isolated by silica gel column chromatography, HPLC and recrystallization and their structures were elucidated on the basis of spectral analysis.
  
  
  RESULTS
  Fourteen compounds were isolated and identified as daucosterol (1), umbelliferone (2), ursolic acid (3), N-p-hydroxy-cis-coumaroyltyramine (4), N-p-hydroxy-trans-coumaroyltyramine (5), N-cis-feruloyltyramine (6), N-trans-feruloyltyramine (7), (3R, 5R, 6S, 7E, 9S)-megastigman-5,6-epoxy-7-ene-3,9-diol (8), (6S,9R)-vomifoliol (9), (+)-syringaresinol (10), isovitexin (11), syringopicroside( 12), uricil (13), (6S,9R)-roseoside (14).
  
  
  CONCLUSIONS
  Compounds 3, 8-2,14 are isolated from the genus for the first time.
authors.affiliation: Institute of Chemistry and Chemistry Engineering, Qiqihar University, Qiqihar 161006, China.
authors.forename: Jin-Lan
authors.initials: JL
authors.lastname: Wang
authors.forename: Zhun
authors.initials: Z
authors.lastname: Hua
authors.forename: Bao-Ying
authors.initials: BY
authors.lastname: Zhao
authors.forename: Wan-Xia
authors.initials: WX
authors.lastname: Tang
authors.forename: Shu-Jun
authors.initials: SJ
authors.lastname: Zhang
mesh_terms: D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification*; D000440:Butanols / Q000737:chemistry / Q000302:isolation & purification*; D027722:Convolvulaceae / Q000737:chemistry*; D003512:Cyclohexanones / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000097245:Ursolic Acid
chemical_list: D047310:Apigenin; D000440:Butanols; D003512:Cyclohexanones; D006027:Glycosides; D012855:Sitosterols; D014315:Triterpenes; D000097245:Ursolic Acid; C038066:syringopicroside; C049772:isovitexin; C525026:vomifoliol; C011015:lyoniside