title: [A new flavonoid glycoside from leaves of Eucalyptus robusta].
abstract: A new flavonoid glycoside, (-)-2S-8-methyl-5,7,4'-trihydroxyflavanone-7-O-β-D-glucopyranoside (1), along with five known ones, quercetin-3-O-(2"-galloyl)-α-L-arabinoside (2), kaempferol-3-O-α-L-arabinoside (3), guaijaverin (4), trifolin (5) and hyperin (6), was isolated from the leaves of Eucalyptus robusta. Their structures with absolute configurations were elucidated by NMR, HR-ESI-MS, CD spectra data and physicochemical methods. In addition, 2-6 were isolated from E. robusta for the first time.
authors.forename: Xi-feng
authors.initials: XF
authors.lastname: Guan
authors.forename: Qian-yi
authors.initials: QY
authors.lastname: Guo
authors.forename: Xiao-jun
authors.initials: XJ
authors.lastname: Huang
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Wen-cai
authors.initials: WC
authors.lastname: Ye
mesh_terms: D005052:Eucalyptus / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry
chemical_list: D005419:Flavonoids; D006027:Glycosides