5,12-Naphthacenedione, 8-acetyl-10-[[3-[bis(phenylmethyl)amino]-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl]oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-, N-oxide, (8S-cis)- NSC357703