Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethyleneimino[(2-cyanoethoxy)phosphinylidene]-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethyleneimino[(2-cyanoethoxy)phosphinylidene]-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene[(trimethylsilyl)imino][(2-cyanoethoxy)phosphinylidene]-(3′→5′)-5′-deoxy-

Thymidine, 5′-[(2-cyanoethoxy)phosphinyl]-5′-deoxy-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene[(2-cyanoethoxy)phosphinico]imino-(3′→5′)-N-benzoyl-2′,5′-dideoxy-5-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene[(2-cyanoethoxy)phosphinico]imino-(3′→5′)-N-benzoyl-2′,5′-dideoxy-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-5′-deoxy-5-methyl-2′-O-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-5′-deoxy-5-methyl-2′-O-methyl-

Cytidine, 3′-de(phosphinicooxy)thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-5′-deoxy-5-methyl-2′-O-methyl-

Cytidine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-

Cytidine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-2′,5′-dideoxy-5-methyl-

Thymidine, 3′-deoxy-3′-methylthymidylyl(methylimino)-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-3′-deoxy-3′-methylthymidylyl(methylimino)-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-3′-deoxy-3′-methylthymidylyl(methylimino)-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-3′-deoxy-3′-methylthymidylylimino-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-3′-deoxy-3′-methylthymidylylimino-(3′→5′)-5′-deoxy-

Thymidine, P-(2-cyanoethyl)-3′-deoxy-3′-methylthymidylylimino-(3′→5′)-5′-deoxy-

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

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene(ethoxyphosphinylidene)imino-(3′→5′)-N-benzoyl-2′,5′-dideoxy-5-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylmethylene[(S)-ethoxyphosphinylidene]imino-(3′→5′)-N-benzoyl-2′,5′-dideoxy-5-methyl-