Two new flavonoid glycosides from Viscum album ssp. album

Two new flavonoid glycosides, 5,7-dimethoxy-flavanone-4′-O-[2″-O- (5‴-O-trans-cinnamoyl)-β-D-apiofuranosyl]-β-D- glucopyranoside (1) and 2′-hydroxy-4′,6′-dimethoxy-chalcone-4-O- [2″-O-(5‴-O-trans-cinnamoyl)-β-D-apiofuranosyl]- β-D-glucopyranoside (2), were isolated from Viscum album L. ssp. album, in addition to six known compounds: syringin, coniferin, kalopanaxin D, 2′-hydroxy-4′,6′-dimethoxy-chalcone-4-O-β-D- glucopyranoside,5,7-dimethoxy-flavanone-4′-O-β-D-glucopyranoside, 5,7-dimethoxy-flavanone-4′-O-[β-D-apiofuranosyl(1→2)]- β-D-glucopyranoside. Their structures were elucidated by spectroscopic (UV, IR, NMR and MS) methods.