title: Unusual Flavonoid Glycosides from the Hawaiian Tree Metrosideros polymorpha.
abstract: Metrosideros polymorpha is a highly variable and widely-distributed tree native to the Hawaiian islands. We describe here the isolation of two new gossypetin derivatives and three new C-methylated flavonol glycosides, which are highly uncommon and may prove to be useful chemotaxonomic markers for the species. In addition, a wide range of known flavonoid glycosides, chalcones, and terpenoids were isolated alongside the new compounds.
authors.forename: Benjamin R
authors.initials: BR
authors.lastname: Clark
authors.forename: Swapan
authors.initials: S
authors.lastname: Pramanick
authors.forename: Norman
authors.initials: N
authors.lastname: Arancon
authors.forename: Robert P
authors.initials: RP
authors.lastname: Borris
mesh_terms: D044948:Flavonols / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006254:Hawaii; D027822:Myrtaceae / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D014197:Trees / Q000737:chemistry*
chemical_list: D044948:Flavonols; D006027:Glycosides; D010936:Plant Extracts