8-methoxy-2-(5-oxoheptanoyl)naphthalene-1,4-dione

methyl(9-SR,10-SR)-6,9-dihydroxy-4-methoxy-5,12-dioxo-9-(2-propyl)-5,7,8,9,10,12-hexahydronaphthacene-10-carboxylate

3-(5,5-ethylenedioxy-6-methyl-2-heptenoyl)-1,5-dimethoxy-4-methoxymethoxynaphthalene

[9-(tert-Butyl-dimethyl-silanyloxy)-3-(4,4-dimethyl-3-oxo-pentyl)-10-hydroxy-5-methoxy-4-oxo-1,2,3,4-tetrahydro-anthracen-2-yl]-acetic acid methyl ester

methyl (6a-SR,9-RS,10-SR,10a-RS)-9-t-butyldimethylsilyloxy-5,9-dihydroxy-4-methoxy-6-oxo-6,6a,7,8,9,10,10a,11-octahydronaphthacene-10-carboxylate