title: [Studies on chemical constituents of Rabdosia serra].
abstract: OBJECTIVE
  To study the chemical constituents of aerial part of Rabdosia serra.
  
  
  METHODS
  The compounds were isolated by extraction, coloum chromatography over silica gel and ODS, and preparative HPLC. Their structures were identified by various spectroscopic methods including MS, IR, 1D and 2D NMR data.
  
  
  RESULTS
  Six compounds were isolated from R. serra and were characterized as ent-1alpha, 7alpha, 14beta, 20-tetrahydroxy-11, 16-kauradien-15-one (1), kamebakaurin (2), dihydrokamebakaurin (3), rabdoinflexin A (4), daucosterol( 5), and beta-sitosterol (6).
  
  
  CONCLUSIONS
  Compound 1 is a new compound, and coumpound 3 was obtained from this plant for the first time.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Zheng
authors.forename: Jiongmo
authors.initials: J
authors.lastname: Cui
authors.forename: Hongzheng
authors.initials: H
authors.lastname: Fu
mesh_terms: D037602:Isodon / Q000737:chemistry*