title: [Study on chemical constituents in the roots and rhizome of Trillium tschonoskii (III)].
abstract: OBJECTIVE
  To investigate the chemical constituents in the roots and rhizome of Trillium tschonoskii.
  
  
  METHODS
  The roots and rhizome of Trillium tschonoskii were extracted with 70% ethanol and purified by polyamide, silica gel, RP-C18 and Sephadex LH-20 column chromatography. Chemical structures were identified by MS, 1D and 2D NMR experiments.
  
  
  RESULTS
  Twelve compounds were isolated and identified from the ethyl acetate and n-butanol as 7,11-dimethyl-3-methylene-10, 11-dihdroxyl-1,6-dodecadien-diol(1),2, 6,10-trimethyl-2,10-dihdroxyl-6-dodecene-diol(2),3,7,11-trimethyl-3,9,11-trihydroxyl-1,6-dodecadiene-glycerol(3),p-hydroxymethyl-benzyl alcohol(4),20betaF, 22alphaF, 25alphaF-spirostan-5,13-ene-3beta,21alpha-diol(5), 2-methyl-3,4-dihydroxy-hexanedioic acid(6), alpha-Lrhamnopyranosyl(7), epitrillenogenin-24-O-acetate-1-O-[2,3,4,-tri-O-acetyl-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside] (8),epitrillenogenin-24-O-acetate-1-O-[2,4, -di-O-acetyl-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside](9), epitrillenogenin1-O-[2,3,4,-tri-O-acetyl-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside] (10), epitrillenogenin-1-O-[2,4, -di-O-acetyl-alpha-Lrhamnopyranosyl-(1-->2) -alpha-L-arabinopyranoside] (11) and epitrillenogenin-1-O-[4-O-acetyl-alpha-L-rhamnopyranosyl-(1-->2) -alpha-L-arabinopyranoside] (12).
  
  
  CONCLUSIONS
  Compounds 4-6 are isolated from this genus for the first time, compounds 1-3, 11, 12 are isolated from this plant for the first time.
authors: Zhong-li
authors: ZL
authors: Zhang
authors: Yue-ming
authors: YM
authors: Zuo
authors: Yan-yan
authors: YY
authors: Wang
authors: Miao-ting
authors: MT
authors: Cai
authors: Yu-yi
authors: YY
authors: Li
mesh_terms: D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D031446:Trillium / Q000737:chemistry*
chemical_list: D010936:Plant Extracts; D012717:Sesquiterpenes