title: [A new bibenzyl derivative from Bletilla striata].
abstract: OBJECTIVE
  To study the chemical constituents of Bletilla striata.
  
  
  METHODS
  Various column chromatographies with silica gel and Sephadex LH-20 were employed for the isolation and purification. The structures of the compounds were elucidated on the basis of spectral analyses and chemical methods.
  
  
  RESULTS
  Three compounds were isolated from the roots of Bletilla striata (Thunb.) Reichb. f. and identified as 5-hydroxy-4-(p-hydroxybenzyl)-3'-3-dimethoxybibenzyl (I), schizandrin (II), 4,4'-dimethoxy-(1,1'-biphenanthrene)-2,2',7,7'-tetrol (III).
  
  
  CONCLUSIONS
  Compound I is a new bibenzyl derivative and II was isolated from this plant for the first time.
authors.affiliation: College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
authors.forename: Guang-xuan
authors.initials: GX
authors.lastname: Han
authors.forename: Li-xin
authors.initials: LX
authors.lastname: Wang
authors.forename: Zheng-bing
authors.initials: ZB
authors.lastname: Gu
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Zhang
mesh_terms: D001632:Bibenzyls / Q000737:chemistry / Q000302:isolation & purification*; D034242:Cyclooctanes / Q000737:chemistry / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011083:Polycyclic Compounds / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C479291:5-hydroxy-4-(4-hydroxybenzyl)-3',3-dimethoxybibenzyl; D001632:Bibenzyls; D034242:Cyclooctanes; D017705:Lignans; D011083:Polycyclic Compounds; C011105:schizandrin