title: [Isolation and structure identification of flavonol glycoside from Lysimachia christinae Hance].
abstract: OBJECTIVE
  To isolate and prepare chemical standards.
  
  
  METHODS
  Flavonol glycoside and rhamnonic acid gamma-lactone were isolated from whole plants of Lysimachia christinae Hance. with 95% ethanol and purified by silica gel column chromatography. UV, IR, MS, 1HNMR, 13CNMR, DEPT, HMQC, HMBC were used for the structural identification.
  
  
  RESULTS
  Two compounds were obtained. They were identified as rhamnonic acid gamma-lactone (I) and kaempferol-3-O-alpha-L-rhamnosyl (1-->2)-beta-D-xyloside (II).
  
  
  CONCLUSIONS
  Compound I was isolated from this genus for the first time. Compound II is a new compound named as lysimachiin.
authors.affiliation: Academy of Traditional Chinese Medicine and Materia Medica of Jilin Province, Changchun 130021, China. cc_cdb@sohu.com
authors.forename: Dong-bin
authors.initials: DB
authors.lastname: Cui
authors.forename: Shu-qin
authors.initials: SQ
authors.lastname: Wang
authors.forename: Ming-ming
authors.initials: MM
authors.lastname: Yan
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D029623:Primulaceae / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D007783:Lactones; C483805:kaempferol-3-O-alpha-L-rhamnosyl (1-2)-beta-D-xyloside; C483806:rhamnonic acid gamma-lactone