5,12-Naphthacenedione, 8-acetyl-10-[(3-amino-2,3,6-trideoxy-.alpha.-L-lyxo-hexopyranosyl)oxy]-7-azido-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-, monohydrochloride [7R-(7.alpha.,8.beta.,10.beta.)]- NSC312888