(1S,3R,4R)-3-Ethyl-1,2,3,4,6,11-hexahydro-3,5,10,12-tetrahydroxy-6,11-dioxo-4-((2,3,6-trideoxy-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-1-naphthacenyl O-3,6-dideoxy-alpha-L-erythro-hexopyranos-4-ulosyl-(1-