title: [Study on chemical constituents of Herba Cirsii].
abstract: OBJECTIVE
  To study the chemical constituents from the aerial part of Herba Cirsii.
  
  
  METHODS
  Compounds were isolated by various chromatographic techniques and identified by spectral data.
  
  
  RESULTS
  Eight compounds were obtained. Their structures were characterized as (7R,8S)-dehydroconiferyl alcohol-8,5'-dehydroconiferyl aldehyde-9-O-beta-D-glucopyranoside(I),(7S,8R)-dihydro-dehydrodiconiferyl alcohol-9-O-beta-D-glucopyranoside(II), Isokaempferide-7-O-beta-D-glucopyranoside(III), Quercetin-3-O-beta-D-gluco-pyranoside (IV), Pectolinarin (V), Rutin(VI), Sucrose(VII), beta-sitosterol(VIII).
  
  
  CONCLUSIONS
  Among these compounds, compounds I-IV are isolated from Herba Cirsii for the first time, Compounds first time. I and II as lignan compounds from this genus, are reported for the first time.
authors.affiliation: Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, China. myhdx163@163.com
authors.forename: Yong-hai
authors.initials: YH
authors.lastname: Meng
authors.forename: Qiu-hong
authors.initials: QH
authors.lastname: Wang
authors.forename: Hai
authors.initials: H
authors.lastname: Jiang
authors.forename: Bing-you
authors.initials: BY
authors.lastname: Yang
authors.forename: Hai-xue
authors.initials: HX
authors.lastname: Kuang
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002867:Chromones / Q000737:chemistry / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D012431:Rutin / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D002867:Chromones; D005960:Glucosides; D017705:Lignans; C052786:pectolinarin; D012431:Rutin; D011794:Quercetin; C110309:quercetin 3-O-glucopyranoside