L-Glutamine, N-[2-hydroxy-1-(hydroxymethyl)-1-methylethyl]-, polymer with (8S-cis)-8-acetyl-10-[(3-amino-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-5,12-naphthacenedione NSC301182