title: [Studies on the lignan chemical constituents from pine needles of Pinus massoniana Lamb].
abstract: OBJECTIVE
  To study the chemical constituents of the pine needles from Pinus massoniana Lamb..
  
  
  METHODS
  Various chromatographic techniques were used for the separation and purification. The physicochemical properties and spectral data were used to elucidate the structures.
  
  
  RESULTS
  Three compounds were isolated from the n-BuOH fraction of water-extracts. The structures were identified as (7S,8R)-4,9'-dihydroxyl-3, 3'-dimethyoxyl-7, 8-dihydrobenzofunan-1'-propanolneolignan-9-O-alpha- L-rhamnopyranoside (massonianoside D, 7), 4,4',9,9'-tetrahydroxyl-3,3'-dimethyoxyl-tetrahydrocyclolignan ((+)-isolariciresinol, 8) and 4,4',9'-trihydroxyl-3,3'-dimethyoxyl-tetrahydrocyclolignan-9-O-beta-D- xylopyranoside (isolariciresinol-9-O-xyloside, 9) on the basis of spectral data (ORD, UV, IR, MS, 1HNMR, 13CNMR, 1H-1HCOSY, HMQC and HMBC etc.).
  
  
  CONCLUSIONS
  Compound 7 is a new compound, while compounds 8 and 9 were isolated from this plant for the first time.
authors.affiliation: Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China. fwsh@371.net
authors.forename: Wei-sheng
authors.initials: WS
authors.lastname: Feng
authors.forename: Yue-feng
authors.initials: YF
authors.lastname: Bi
authors.forename: Xiao-ke
authors.initials: XK
authors.lastname: Zheng
authors.forename: Xin-liang
authors.initials: XL
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Li
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry / Q000145:classification / Q000302:isolation & purification*; D008031:Lignin / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D009005:Monosaccharides / Q000737:chemistry / Q000302:isolation & purification*; D009284:Naphthols / Q000737:chemistry / Q000302:isolation & purification; D028223:Pinus / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C483807:(7S,8R)-4,9'-dihydroxyl-3, 3'-dimethyoxyl-7, 8-dihydrobenzofunan-1'-propanolneolignan-9-O-alpha- L-rhamnopyranoside; D004365:Drugs, Chinese Herbal; D017705:Lignans; D009005:Monosaccharides; D009284:Naphthols; C060284:isolariciresinol; D008031:Lignin