1-Naphthacenecarboxylic acid, 1,2,3,4,6,11-hexahydro-2,5,7-trihydroxy-6,11-dioxo-2-(2-oxopropyl)-4-((2,3,6-trideoxy-4-O-(2,6-dideoxy-alpha-L-lyxo-hexopyranosyl)-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-, methyl ester, (1R-(1alpha,2beta,4beta))-