1-Naphthacenecarboxylic acid, 4-[[O-2,6-dideoxy-alpha-L-lyxo-hexopyranosyl-(1-4)-O-2, 6-dideoxy-alpha-L-lyxo-hexopyranosyl-(1-4)-2,3, 6-trideoxy-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl]oxy]-2-e thyl-1,2,3,4,6,11-hexahydro-2,5,7,10-tetrahydroxy-6,11-dioxo-, methyl ester, (1R-(1alpha,2beta,4beta))- (9CI)