83291-71-8 Acetic acid, ((2-(1,2,3,4,6,11-hexahydro-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-4-((2,3,6-trideoxy-3-((trifluoroacetyl)amino)-alpha-L-lyxo-hexopyranosyl)oxy)-2-naphthacenyl)-2-oxoethyl)thio)-, ethyl ester, (2S-cis)-