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-3-(dimethylamino)-4-O-((2S-(2alpha,5beta(2R*,5R*,6R*),6beta))-tetrahydro-6-methyl-5-((tetrahydro-5-hydroxy-6-methyl-2H-pyran-2-yl)oxy)-2H-pyran-2-yl)-alpha-L-lyxo-hexopyranosyl)oxy)-, methyl ester, (1R-(1alpha,2beta,4beta))-