title: [Studies on chemical constituents from leaves of Lysidice brevicalyx].
abstract: OBJECTIVE
  To study the chemical constituents of Lysidice brevicalyx.
  
  
  METHODS
  Various chromatographic techniques were used to isolate and purify the constituents such as column chromatography on silica gel, Rp-silica gel, Sephadex LH-20 and HPLC. The structures were elucidated by chemical evidence and spectroscopic methods.
  
  
  RESULTS
  Seven compounds were isolated from the 95% ethanol extract of the leaves of L. brevicalyx and these compounds were elucidated as 2-0-[1-(3-methylbutyryl)phloroglucin-ol]-beta-D-glucopynanoside (1), 3-beta-D-glucopyranosyloxy-4, 5-dimethoxy-benzoic acid (2), benzyl alcohol O-beta-D-glucopyra noside (3), polydatin (4), quercetin-3-alpha-L-rhamnopyranoside (5), ethyl gallate (6), benzyl 6-O-alpha-L-arabinofurano syl-beta-D-glucopynanoside (7).
  
  
  CONCLUSIONS
  All Compounds were isolated from this plant for the first time. Compounds 2, 3, 5-7 were obtained from this genus for the first time.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China.
authors.forename: Hua-liang
authors.initials: HL
authors.lastname: Yang
authors.forename: Shi-shan
authors.initials: SS
authors.lastname: Yu
authors.forename: Yue-hu
authors.initials: YH
authors.lastname: Pei
mesh_terms: D002851:Chromatography, High Pressure Liquid; D007887:Fabaceae / Q000737:chemistry*; D005707:Gallic Acid / Q000031:analogs & derivatives / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry; D006027:Glycosides; D009005:Monosaccharides / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives / Q000737:chemistry; D013267:Stilbenes / Q000737:chemistry
chemical_list: D005960:Glucosides; D006027:Glycosides; D009005:Monosaccharides; D010936:Plant Extracts; D013267:Stilbenes; C509385:quercetin-3-O-alpha-L-rhamnopyranoside; C048734:ethyl gallate; D005707:Gallic Acid; D011794:Quercetin; C058229:polydatin