Further flavonoid glycosides from Calluna vulgaris
作者:Alain Simon、Albert J. Chulia、Mourad Kaouadji、Daovy P. Allais、Christiane Delage
DOI:10.1016/0031-9422(93)85253-n
日期:1993.3
The new quercetin 3-[2,3,4-triacetyl-alpha-L-arabinosyl (1 --> 6)-beta-D-glucoside] has been isolated together with the dihydroflavonol glucoside callunin and quercetin 3-alpha-L-arabinoside. Structural elucidation of these natural products was achieved mainly by H-1 and C-13 NMR spectroscopy. Furthermore, H-1 NMR assignments for H-2 and H-3 of the dihydroflavonol glucoside were interchanged.