Flavonoid oligosides from georgian astragalus falcatus

Article abstract of DOI:10.1007/s10600-011-9938-9

New flavonoid oligosides were isolated from leaves and flowers of Astragalus falcatus Lam. It was found on the basis of chemical transformations, UV, IR, PMR, ¹³C NMR, HMBC, HSQC, 1D-TOCSY, and mass spectral properties that falcoside C had the structure quercetin 3-O-[β-D- glucopyranosyl(1→3)-α-Lrhamnopyranosyl( 1→6)]-β-D- galactopyranoside 7-O-β-D-glucopyranoside; falcoside D, isorhamnetin 3-O-[β-D-xylopyranosyl(1→3)-α-L-rhamnopyranosyl(1→6)] -β-D-galactopyranoside 7-O-α-Lrhamnopyranoside.