title: [Chemical constituents in the roots of Salvia przewalskii Maxim].
abstract: OBJECTIVE
  To investigate the chemical composition of the root of Salvia przewalskii Maxim.
  
  
  METHODS
  Compounds were isolated by silica gel column chromatography. Structures of these compounds were elucidated by spectral analysis (EI-MS, FAB-MS, 1HNMR, 13CNMR, 1H-1H COSY, 1H-13C COSY, HMBC, NOESY) and phytochemical properties.
  
  
  RESULTS
  Eight compounds were isolated and identified as: tanshinone II-A (I), crypotanshinone (II), przewaquinone A (III), sugiol (IV), ursolic acid (V), 2 alpha, 3 alpha-dihydroxy urs-12-ene-28-acid (VI), oleanolic acid (VII), and neo-przewaquinone A (VIII).
  
  
  CONCLUSIONS
  Compound VIII is a new compound, and compound II, IV, V, VI and VII are isolated from this plant for the first time.
authors.affiliation: College of Pharmacy, Second Military Medical University, Shanghai 200433, China. chenwansheng@21cn.com
authors.forename: Wan-sheng
authors.initials: WS
authors.lastname: Chen
authors.forename: Xin-ming
authors.initials: XM
authors.lastname: Jia
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Zhang
authors.forename: Zi-yang
authors.initials: ZY
authors.lastname: Lou
authors.forename: Chuan-zhuo
authors.initials: CZ
authors.lastname: Qiao
mesh_terms: D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification*; D027544:Salvia / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification; D000097245:Ursolic Acid
chemical_list: D006576:Heterocyclic Compounds, 4 or More Rings; D009828:Oleanolic Acid; D011809:Quinones; D014315:Triterpenes; D000097245:Ursolic Acid; C484875:neoprzewaquinone A