title: [Chemical constituents of Siegesbeckia pubescens].
abstract: OBJECTIVE
  To study the components in aerial part of Siegesbeckia pubescens.
  
  
  METHODS
  The compounds were isolated and purified by silica gel, sephadex LH-20 and other column chromatography. Structures were elucidated by spectroscopic methods.
  
  
  RESULTS
  Four compounds were isolated from S. pubescens and were characterized as dimethyl-21-ethenetylene-darutigenol-3-O-beta-D-glucopyranosid (1), darutigenol (2), darutoside (3), stigmaster-3-O-beta-D-glucopyranosid (4).
  
  
  CONCLUSIONS
  Compound 1 is a new compound.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Ou
authors.forename: Lang
authors.initials: L
authors.lastname: Zhao
authors.forename: Kan
authors.initials: K
authors.lastname: Wang
authors.forename: Hongzheng
authors.initials: H
authors.lastname: Fu
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000032:analysis* / Q000737:chemistry*; D007536:Isomerism
chemical_list: D004365:Drugs, Chinese Herbal