1-Naphthacenecarboxylic acid, 4-(((2''',3''-anhydro)-O-3,6-dideoxy-alpha-L-erythro-hexopyranos-4-ulosyl-(1->4)-O-2,6-dideoxy-alpha-L-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-trihydroxy-6,11-dioxo-2-(2-oxopropyl)-, methyl ester, (1R-(1alpha,2beta,4beta))-