9-acetyl-11-hydroxy-7,8,9,10-tetrahydro-5,12-naphthacenedione

1,2,3,4,4a,5,12,12a-octahydro-2-(1-hydroxyethyl)-2-hydroxy-6,11-dimethoxy-12-oxo-naphthacene

6,8-Dihydroxy-8-(2-methyl-[1,3]dioxolan-2-yl)-7,8,9,10-tetrahydro-naphthacene-5,12-dione