title: [Studies on chemical constituents from leaves of Cassia alata].
abstract: OBJECTIVE
  To isolate and identify chemical constituents of Cassia alata.
  
  
  METHODS
  Compounds were separated and purified by column chromatography with silica gel and Sephadex LH-20, elucidated by spectroscopic methods including 1D and 2D NMR, IR and MS techniques.
  
  
  RESULTS
  Twelve compounds were isolated from C. alata, which were identified as chrysoeriol (1), kaempferol (2), quercetin (3), 5,7,4'-trihydroflavanone (4), kaempferol-3-O-beta-D-glucopyranoside (5), kaempferol-3-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (6), 17-hydrotetratriacontane (7), n-dotriacontanol (8), n-triacontanol (9), palmitic acid ceryl ester (10), stearic acid (11), palmitic acid (12).
  
  
  CONCLUSIONS
  Compounds 3-12 were isolated from C. alata for the first time.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China. LA62@163
authors.forename: An
authors.initials: A
authors.lastname: Liu
authors.forename: Lizhen
authors.initials: L
authors.lastname: Xu
authors.forename: Zhongmei
authors.initials: Z
authors.lastname: Zou
authors.forename: Shilin
authors.initials: S
authors.lastname: Yang
mesh_terms: D002366:Cassia / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals