title: [Study on Megastigmane Glycosides and Lignan Constituents from Leaves of Psidium littorale].
abstract: OBJECTIVE
  To study the chemical constituents of the leaves of Psidium littorale.
  
  
  METHODS
  The constituents were isolated with silica gel column chromatography and the structures of these compounds were elucidated on the basis of spectral analysis.
  
  
  RESULTS
  Four megastigmane glycosides and three lignans were isolated and their structures were identified as Bridelionoside B(1), Euodinoside E(2), (3S,5R,6R,7E,9S)-Megastignan-7-ene-3,5,6,9-tetrol 9-O-β-D-glucopyranoside (3), Bridelionoside C(4), (--)-Isolaricires-inol 3-α-O-β-D-glucopyranoside (5), (--)-5'-methoxy-Isolariciresinol 3-α-O-β-D-glucopyranoside (6) and dihydrodehydrodiconiferyl alcohol 4-O-β-D-glucopyranoside(7).
  
  
  CONCLUSIONS
  Compounds 1-7 are isolated from this plant for the first time. The results have provided the scientific basis for further exploitation of Psidium littoratle.
authors.forename: Cai-ying
authors.initials: CY
authors.lastname: Peng
authors.forename: Jian-qun
authors.initials: JQ
authors.lastname: Liu
authors.forename: Ji-cheng
authors.initials: JC
authors.lastname: Shu
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
mesh_terms: D003512:Cyclohexanones / Q000737:chemistry* / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D045792:Norisoprenoids / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D031647:Psidium / Q000737:chemistry*
chemical_list: D003512:Cyclohexanones; D005960:Glucosides; D006027:Glycosides; D017705:Lignans; D045792:Norisoprenoids; C413264:megastigmane