Acylated apigenin glycosides from alfalfa (Medicago sativa L.) var. Artal.
Three flavones, including 4'-O-[2'-O-E-feruloyl-O-beta-D-glucuronopyranosyl(1-->2)-O-beta-D-glucuronopyranoside]apigenin, 7-O-beta-D-glucuronopyranosyl-4'-O-[2'-O-E-feruloyl-O-beta-D-glucuronopyranosyl(1-->2)-O-beta-D-glucuronopyranoside]apigenin and 7-O-beta-D-glucuronopyranosyl-4'-O-[2'-O-p-E-coumaroyl-O-beta-D-glucuronopyranosyl(1-->2)-O-beta-D-glucuronopyranoside]apigenin have been identified in alfalfa var. Artal. The known flavone 7-O-[2-O-E-feruloyl-[beta-D-glucuronopyranosyl(1-->3)]-O-beta-D-glucuronopyranosyl(1-->2)-O-beta-D-glucurono-pyranoside] apigenin was also isolated. The structures of these compounds were deduced on the basis of their spectral data.
Stochmal
A
A
Department of Biochemistry, Institute of Soil Science and Plant Cultivation, ul. Czartoryskich 8, 24-100, Pulawy, Poland. asf@iung.pulaway.pl
Simonet
A M
AM
Macias
F A
FA
Oliveira
M A
MA
Abreu
J M
JM
Nash
R
R
Oleszek
W
W
D000215:Acylation; D047310:Apigenin; D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D000455:Medicago sativa / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment
D005419:Flavonoids; D006027:Glycosides; D047310:Apigenin