Thymidine, P(O)-[1,2-O-cyclopentylidene-3,5-dideoxy-5-[(1-methylethyl)amino]-α-L-xylofuranos-3-yl]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-thiothymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(2′R,4′aS,5′aS,8aS,8bR)-hexahydro-3′-(1-methylethyl)spiro[cyclopentane-1,7′-[2H][1,3]dioxolo[4,5]furo[2,3-e][1,3,2]oxazaphosphorin]-2′-yl]-

Thymidine, P(O)-[1,2-O-cyclopentylidene-3,5-dideoxy-5-[(1-methylethyl)amino]-α-D-xylofuranos-3-yl]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-thiothymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(2′S,4′aR,5′aR,8aR,8bS)-hexahydro-3′-(1-methylethyl)spiro[cyclopentane-1,7′-[2H][1,3]dioxolo[4,5]furo[2,3-e][1,3,2]oxazaphosphorin]-2′-yl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[O-ethyl O-[(1S)-2-(1H-imidazol-2-yl)-1-methylethyl] phosphorothioate]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[O-methyl O-[(1R)-1-methyl-3-[(1-methylethyl)amino]propyl] (R)-phosphorothioate]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[methyl 3-[(1-methylethyl)amino]propyl (S)-phosphite]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(2S)-tetrahydro-3-(1-methylethyl)-2H-1,3,2-oxazaphosphorin-2-yl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[methyl 3-[(1-methylethyl)amino]propyl (R)-phosphite]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(2R)-tetrahydro-3-(1-methylethyl)-2H-1,3,2-oxazaphosphorin-2-yl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[butyl (1R)-1-methyl-3-[(1-methylethyl)amino]propyl (R)-phosphite]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[methyl (1R)-1-methyl-3-[(1-methylethyl)amino]propyl (S)-phosphite]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[methyl (1R)-1-methyl-3-[(1-methylethyl)amino]propyl (R)-phosphite]

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(4S,5R)-3,4-dimethyl-5-phenyl-1,3,2-oxazaphospholidin-2-yl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-[(6R)-3-(1,1-dimethylethyl)tetrahydro-6-methyl-2H-1,3,2-oxazaphosphorin-2-yl]-

Cytidine, 2′-deoxy-, 3′,5′-bis(4-methylbenzoate)

Thymidine, P-(2-cyanoethyl)thymidylyl-(3′→3′)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 5′-O-[bis[4-[(3E)-3,5-hexadienyloxy]phenyl]phenylmethyl]-P-(2-cyanoethyl)thymidylyl-(3′→3′)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, thymidylyl-(3′→3′)-5′-O-[bis[4-[[(3E)-3,5-hexadienyl]oxy]phenyl]phenylmethyl]-

Thymidine, 5′-O-[bis[4-[(3E)-3,5-hexadienyloxy]phenyl]phenylmethyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]