5,12-Naphthacenedione, 10-[(3-amino-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-7-methyl-, hydrochloride, [7R-(7.alpha.,8.alpha.,10.beta.)]- NSC294400