5,12-Naphthacenedione, 10-[[3-[(2-amino-4-methyl-1-oxopentyl)amino]-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl]oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxy-, [8S-[8.alpha.,10.alpha.(R*)]]- NSC311357