Carbonic acid benzyl ester 4-[(5R,5aR,8aS,9S)-9-((2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-methyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-yl]-2,6-dimethoxy-phenyl ester

11-oxo-13-deoxo-4'-demethyl-4'-benzyloxycarbonyl-4β-(formylmethyl)-4-desoxypodophyllotoxin

11-oxo-13-deoxo-4'-benzyloxycarbonyl-4'-demethylepipodophyllotoxin 4-[N-[3-(N',N'-dimethylaminopropyl)]-N-methyl]carbamate

11-oxo-13-deoxo-4'-benzyloxycarbonyl-4'-demethylepipodophyllotoxin 4-[N-(3-aminopropyl)]carbamate

11-oxo-13-deoxo-4'-benzyloxycarbonyl-4'-demethylepipodophyllotoxin 4-[N-[2-(N',N'-dimethylaminoethyl)]-N-methyl]carbamate