1-Naphthacenecarboxylic acid, 4-[[O-2,6-dideoxy-.alpha.-L-lyxo-hexopyranosyl-(1.fwdarw.4)-O-2, 6-dideoxy-.alpha.-L-lyxo-hexopyranosyl-(1.fwdarw.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-(1.alpha.,2.beta.,4.beta.))- (9CI)