Glycosidic coupling of regiospecifically synthesized xantho[2,3-g]tetralin aglycones to afford antileukemic but redox inactive structures related to anthracyclines
Regiospecific synthesis of redox inactive ring C modified aglycones related to anthracyclines. Application of photo-Fries rearrangement and novel nucleophile-catalyzed rearrangements leading to the xantho[2,3-g]tetralin and xantho[2,3-f]tetralin systems