1-Naphthacenecarboxylic acid, 4-((O-2''',3''-anhydro-3,6-dideoxy-alpha-L-erythro-hexopyranos-4-ulosyl-(1->4)-O-2,6-dideoxy-alpha-D-lyxo-hexopyranosyl-(1->4)-2,3,6-trideoxy-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-1,2,3,4,6,11-hexahydro-2,5,7,10-tetrahydroxy-2-methyl-6,11-dioxo-, methyl ester, (1R-(1alpha,2beta,4beta))-