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

(5S,5aS,8aR,9R)-5-(tert-Butyl-dimethyl-silanyloxy)-9-[4-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethoxy-phenyl]-5,8,8a,9-tetrahydro-5aH-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6-one

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

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