title: [Two flavone glycosides from Chinese traditional medicine Amomum villosum].
abstract: OBJECTIVE
  To study the water soluble constituents from Amomum villosum.
  
  
  METHODS
  The constituents were separated and purified with chromatographic methods, identified by NMR, MS, UV and IR.
  
  
  RESULTS
  Two quercetin glycosides: quercitrin (quercetin-3-O-alpha-L-rhamnoside I) and isoquercitrin (quercetin-3-O-beta-D-glucoside II) were isolated and identified.
  
  
  CONCLUSIONS
  I and II were isolated for the first time from A. villosum.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China.
authors.forename: Lan
authors.initials: L
authors.lastname: Sun
authors.forename: Jing-guang
authors.initials: JG
authors.lastname: Yu
authors.forename: Li-dong
authors.initials: LD
authors.lastname: Zhou
authors.forename: Xiu-zhen
authors.initials: XZ
authors.lastname: Luo
authors.forename: Wei
authors.initials: W
authors.lastname: Din
authors.forename: Shi-lin
authors.initials: SL
authors.lastname: Yang
mesh_terms: D035801:Amomum / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C016527:isoquercitrin; C012526:quercitrin; D011794:Quercetin