3-(3,4-Dimethoxy-phenyl)-7-hydroxy-2-methyl-chromen-4-one is used as a reactant in the preparation of (hydroxy)dimethylaminomethyl)isoflavones as precursors to isoflavanoid ortho-quinone methides, their elimination and Diels-Alder reactions, and the antitumor activity of selected Diels-Alder adducts.
