having an oxygen atom of the saccharide radical directly bound to a condensed ring system having three or more carbocyclic rings, e.g. daunomycin, adriamycin

Full Title

Preparation of compounds containing saccharide radicals (ketoaldonic acids C12P7/58) > Preparation of O-glycosides, e.g. glucosides > having an oxygen atom of the saccharide radical directly bound to a condensed ring system having three or more carbocyclic rings, e.g. daunomycin, adriamycin