6-(benzyloxy)-cis-9,10-dihydroxy-4,5,12-trimethoxy-7,8,9,10-tetrahydronaphthacene

2-[1-Ethoxycarbonyl-meth-(Z)-ylidene]-4-oxo-cyclohexanecarboxylic acid ethyl ester

6-(benzyloxy)-(9-ethylenedioxy)-4-methoxy-7,8,9,10-tetrahydro-5,12-naphthacenedione