title: Polygalins D-G, four new flavonol glycosides from the aerial parts of Polygala sibirica L. (Polygalaceae).
abstract: Four new flavonol glycosides (1-4), polygalins D-G, together with 12 known flavonoids (5-16) were isolated from the aerial parts of Polygala sibirica L. The chemical structures of these compounds were characterised by NMR and ESI-MS spectroscopic data and acid hydrolysis results. This report is a continuous research work on the systematic chemical investigations of plants of the genus Polygala in our laboratory.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China.
authors.forename: Yue-Lin
authors.initials: YL
authors.lastname: Song
authors.forename: Guan-Shen
authors.initials: GS
authors.lastname: Zhou
authors.forename: Si-Xiang
authors.initials: SX
authors.lastname: Zhou
authors.forename: Yong
authors.initials: Y
authors.lastname: Jiang
authors.forename: Peng-Fei
authors.initials: PF
authors.lastname: Tu
mesh_terms: D005419:Flavonoids / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry*; D031801:Polygala / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D006027:Glycosides