Anthocyanins with unusual furanose sugar (apiose) from leaves of Synadenium grantii (Euphorbiaceae).
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.
Andersen
Øyvind M
ØM
Department of Chemistry, University of Bergen, Allégt. 41, 5007 Bergen, Norway. oyvind.andersen@kj.uib.no
Jordheim
Monica
M
Byamukama
Robert
R
Mbabazi
Angella
A
Ogweng
George
G
Skaar
Irene
I
Kiremire
Bernard
B
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
D000872:Anthocyanins; D005663:Furans; D010429:Pentoses; C004983:apiose; C039281:furan