title: [Studies on the anthraquinones of Cassia siamea].
abstract: OBJECTIVE
  To study the anthraquinone constituents of the stem of Cassia siamea.
  
  
  METHODS
  The compounds were isolated by chromatography on silica gel, MHPLC, and identified on the basis of spectral analysis including IR, EI-MS, FAB-MS, 1HNMR, 13CNMR and DEPT.
  
  
  RESULTS
  Three compounds were isolated and identified as: chrysophanol (I), chrysophanol-1-O-beta-D-glucopyranoside (II) and 1-[(beta-D-glucopyranosyl-(1-->6)-0-beta-D-glucopyranosyl) oxy]-8-hydroxyl-3-methy-9,10-anthraquinone (III).
  
  
  CONCLUSIONS
  III is a new compound, II was obtained from this plant for the first time.
authors.affiliation: Center of Marine Drug Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
authors.forename: T S
authors.initials: TS
authors.lastname: Lü
authors.forename: Y H
authors.initials: YH
authors.lastname: Yi
authors.forename: S L
authors.initials: SL
authors.lastname: Mao
authors.forename: D Z
authors.initials: DZ
authors.lastname: Zhou
authors.forename: Q Z
authors.initials: QZ
authors.lastname: Xu
authors.forename: H F
authors.initials: HF
authors.lastname: Tong
authors.forename: S Y
authors.initials: SY
authors.lastname: Zhang
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D002366:Cassia / Q000737:chemistry*; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C481922:1-((glucopyranosyl-1-6-O-glucopyranosyl)oxy)-8-hydroxy-3-methyl-9,10-anthraquinone; D000880:Anthraquinones; D004187:Disaccharides; D005960:Glucosides; C481921:chrysophanol-1-O-glucopyranoside; C027113:chrysophanic acid