methyl (1RS,2SR,4SR)-2-ethyl-1,2,3,4,6,11-hexahydro-2,4,5,12-tetrahydroxy-7-methoxy-6,11-dioxo-1-naphthacenecarboxylate

methyl (1RS,2RS,4RS)-2-ethyl-1,2,3,4,6,11-hexahydro-2,4,5,12-tetrahydroxy-7-methoxy-6,11-dioxo-1-naphthacenecarboxylate

(+/-)-4-O-methyl-ε-rhodomycinone