5,12-Naphthacenedione, 8-acetyl-7,8,9,10-tetrahydro-1,6,8,11-tetrahydroxy-10-[[2,3,6-trideoxy-3-[(trifluoroacetyl)amino]-.alpha.-L-lyxo-hexopyranosyl]oxy]-, (8S-cis)- NSC275648