1-Naphthacenecarboxylic acid, 2-ethyl-1,2,3,4,6,11-hexahydro-2,5,7,10-tetrahydroxy-6,11-dioxo-4-[[2,3,6-trideoxy-3-(dimethylamino)-.alpha.-L-lyxo-hexopyranosyl]oxy]-, methyl ester, hydrochloride, [1R-(1.alpha.,2.beta.,4.beta.)]- NSC272352 PYRROMYCIN DERIV Pyrromycin Hydrochloride