The flavonoid herbacetin diglucoside as a constituent of the lignan macromolecule from flaxseed hulls

Herbacetin diglucoside (HDG) is, besides secoisolariciresinol diglucoside (SDG), found to be a substructure of the lignan macromolecule from flaxseed hulls. Fragments consisting of HDG and the linker-molecule hydroxy-methyl-glutaric acid show that HDG is incorporated in the lignan macromolecule via the same linker-molecule as SDG.