title: [Chemical constituents from roots of Phlomis umbrosa].
abstract: OBJECTIVE
  To study the chemical constituents of Phlomis umbrosa.
  
  
  METHODS
  Chemical constituents were isolated by repeated column chromatography (Toyopearl HW-40C and preparative HPLC). The structures were elucidated on the basis of spectral data analysis.
  
  
  RESULTS
  Thirteen compounds were identified as oleanolic acid (1), corosolic acid (2), hederagenin (3), arjunolic acid (4), belleric acid (5), 3beta-hydroxy-29-al-12-en-28-oleanoic acid (6), butyrospermol (7), beta-sitosterol (8), daucosterol (9), caffeic acid (10), vanillic acid (11), p-hydroxy-benzoic acid (12), 3, 4-dihydroxy-benzoic acid (13).
  
  
  CONCLUSIONS
  Compounds 3 9, 11-13 were isolated from the plant for the first time.
authors.affiliation: Chemical Engineering & Pharmaceutical College, Henan University of Science and Technology, Luoyang 471003, China. liudeng20022002@yahoo.com.cn
authors.forename: Pu
authors.initials: P
authors.lastname: Liu
authors.forename: Ruixue
authors.initials: R
authors.lastname: Deng
authors.forename: Hongquan
authors.initials: H
authors.lastname: Duan
authors.forename: Weiping
authors.initials: W
authors.lastname: Yin
mesh_terms: D009930:Organic Chemicals / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D031345:Phlomis / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals