Two New Flavonoid Glycosides from Viscum album ssp. album

Abstract

Two new flavonoid glycosides, 5,7-dimethoxy-flavanone-4'- O -[2?- O -(5?- O-trans -cinnamoyl)-ß-D-apiofuranosyl]-ß-D-glucopyranoside (1) and 2?-hydroxy-4',6'-dimethoxychalcone- 4- O -[2?- O -(5?- O-trans -cinnamoyl)-ß-Dapiofuranosyl]-ß-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 -ß-D-glucopyranoside, 5,7-dimethoxy-flavanone-4'- O -ß-D-glucopyranoside, 5,7-dimethoxy-flavanone-4'- O -[ß-D-apiofuranosyl(1?2)]-ß-D-glucopyranoside. Their structures were elucidated by spectroscopic (UV, IR, NMR and MS) methods.