5,12-Naphthacenedione, 7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(1-hydroxyethyl)-1-methoxy-10-[[2,3,6-trideoxy-3-(4-methoxy-1-piperidinyl)-.alpha.-L-lyxo-hexopyranosyl]oxy]-, hydrochloride NSC334354