9-(1-hydroxyethyl)-8(8H)-bromo-7,10-dihydro-6,9,11-trihydroxy-5,12-naphthacenedione 1',9-acetonide

9-(1-hydroxyethyl)-9-hydroxy-6,11-dimethoxy-7,8,9,10-tetrahydro-5,12-naphthacenedione 1',9-acetonide

5,8-dimethoxy-3,4-dihydronaphthalene-2-carbaldehyde

(+/-)-5,8-dimethoxy-2-hydroxy-2-(1'-hydroxyethyl)-1,2,3,4-tetrahydronaphthalene

6,11-dihydroxy-7,10-dihydrotetracene-5,12-dione