5,12-Naphthacenedione, 7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(2-hydroxyacetyl)-1-methoxy-10-[[2,3,6-trideoxy-3-[[[2-(2-pyridinyldithio)ethoxy]carbonyl]amino]-α-L-lyxo-hexopyranosyl]oxy]-, (8S,10S)-
5,12-Naphthacenedione, 7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(2-hydroxyacetyl)-1-methoxy-10-[[2,3,6-trideoxy-3-[[[2-(2-pyridinyldithio)ethoxy]carbonyl]amino]-α-L-lyxo-hexopyranosyl]oxy]-, (8S,10S)-