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

11-oxo-13-deoxo-4'-benzyloxycarbonyl-4'-demethylepipodophyllotoxin 4-(p-nitrophenyl)carbonate

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

Carbonic acid benzyl ester 4-[(5R,5aR,8aR,9S)-9-(2,3-dihydroxy-propyl)-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'-benzyloxycarbonyl-4'-demethylepipodophyllotoxin 4-[N-(2-aminoethyl)]carbamate