1,1-Dimethylethyl 4-[2-[[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-9H-purin-6-yl]amino]ethyl]-1H-imidazole-1-carboxylate

1,1-Dimethylethyl 4-[2-[[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-9H-purin-6-yl]amino]ethyl]-1H-imidazole-1-carboxylate

1,1-Dimethylethyl 4-[2-[[9-(2-deoxy-β-D-erythro-pentofuranosyl)-9H-purin-6-yl]amino]ethyl]-1H-imidazole-1-carboxylate

1H-Imidazole-1-carboxylic acid, 4-[2-[[9-[2-deoxy-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-9H-purin-6-yl]amino]ethyl]-, 1,1-dimethylethyl ester

9H-Purine, 9-[2-deoxy-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-6-iodo-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-α-oxo-α-[[2-[(trifluoroacetyl)amino]ethyl]amino]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-α-oxo-α-[[2-[(trifluoroacetyl)amino]ethyl]amino]-

Thymidine, α-oxo-α-[[2-[(trifluoroacetyl)amino]ethyl]amino]-

Thymidine, α-oxo-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-α-[[2-[(trifluoroacetyl)amino]ethyl]amino]-

5-Pyrimidinecarboxylic acid, 1-[2-deoxy-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-, methyl ester

1,1-Dimethylethyl 4-[2-[[[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]carbonyl]amino]ethyl]-1H-imidazole-1-carboxylate

1,1-Dimethylethyl 4-[2-[[[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]carbonyl]amino]ethyl]-1H-imidazole-1-carboxylate

1,1-Dimethylethyl 4-[2-[[[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]carbonyl]amino]ethyl]-1H-imidazole-1-carboxylate

Thymidine, [P(S)]-P(O)-[[(2S)-1-acetyl-2-pyrrolidinyl]methyl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(dimethylamino)methylene]-P-thioguanylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, [P(R)]-P(O)-[[(2R)-1-acetyl-2-pyrrolidinyl]methyl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(dimethylamino)methylene]-P-thioguanylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, [P(S)]-P(O)-[[(2S)-1-acetyl-2-pyrrolidinyl]methyl]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-P-thiocytidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, [P(R)]-P(O)-[[(2R)-1-acetyl-2-pyrrolidinyl]methyl]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-P-thiocytidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, [P(S)]-P(O)-[[(2S)-1-acetyl-2-pyrrolidinyl]methyl]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-P-thioadenylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, [P(R)]-P(O)-[[(2R)-1-acetyl-2-pyrrolidinyl]methyl]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-P-thioadenylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(dimethylamino)methylene]-3′-O-[(3aS)-tetrahydro-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaphosphol-1-yl]-