Dithiophosphoric acid O-[(2R,3S,5R)-2-(bis-(4-methoxy-phenyl)-{3-[2-(3-methyl-3H-imidazol-4-yl)-ethylcarbamoyl]-phenyl}-methoxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl] ester S,S'-diphenyl ester

Dithiophosphoric acid O-{(2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-[6-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-purin-9-yl]-tetrahydro-furan-3-yl} ester S,S'-diphenyl ester

Dithiophosphoric acid O-[(2R,3S,5R)-2-[[3-(3-imidazol-1-yl-propylcarbamoyl)-phenyl]-bis-(4-methoxy-phenyl)-methoxymethyl]-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl] ester S,S'-diphenyl ester

2'-O-(di-tert-butoxyphosphoryl)-3'-O-bis<(phenylthio)phosphoryl>-5'-O-(4,4'-dimethoxytrityl)-6-N-benzoyladenosine

2-N-(4,4'-dimethoxytrityl)-2',3'-O-methoxymethyleneguanosine-5' S,S-diphenyl dithiophosphate