title: Anthocyanins with unusual furanose sugar (apiose) from leaves of Synadenium grantii (Euphorbiaceae).
abstract: Four anthocyanins, cyanidin 3-O-(2''-(5'''-(E-p-coumaroyl)-beta-apiofuranosyl)-beta-xylopyranoside)-5-O-beta-glucopyranoside, cyanidin 3-O-(2''-(5'''-(E-p-coumaroyl)-beta-apiofuranosyl)-beta-xylopyranoside), cyanidin 3-O-(2''-(5'''-(E-caffeoyl)-beta-apiofuranosyl)-beta-xylopyranoside) and cyanidin 3-O-(2''-(5'''-(E-feroyl)-beta-apiofuranosyl)-beta-xylopyranoside) were isolated from leaves of African milk bush, (Synadenium grantii Hook, Euphorbiaceae) together with the known cyanidin 3-O-beta-xylopyranoside-5-O-beta-glucopyranoside and cyanidin 3-O-beta-xyloside. The four former pigments are the first reported anthocyanins containing the monosaccharide apiose, and the three 5'''-cinnamoyl derivative-2''-(beta-apiosyl)-beta-xyloside subunits have previously not been reported for any compound.
authors.affiliation: Department of Chemistry, University of Bergen, Allégt. 41, 5007 Bergen, Norway. oyvind.andersen@kj.uib.no
authors.forename: Øyvind M
authors.initials: ØM
authors.lastname: Andersen
authors.forename: Monica
authors.initials: M
authors.lastname: Jordheim
authors.forename: Robert
authors.initials: R
authors.lastname: Byamukama
authors.forename: Angella
authors.initials: A
authors.lastname: Mbabazi
authors.forename: George
authors.initials: G
authors.lastname: Ogweng
authors.forename: Irene
authors.initials: I
authors.lastname: Skaar
authors.forename: Bernard
authors.initials: B
authors.lastname: Kiremire
mesh_terms: D000872:Anthocyanins / Q000737:chemistry* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D019665:Euphorbiaceae / Q000737:chemistry*; D005663:Furans / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D010429:Pentoses / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000872:Anthocyanins; D005663:Furans; D010429:Pentoses; C004983:apiose; C039281:furan