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

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

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

Thymidine, 3′-amino-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-deoxythymidylylmethylene-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

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

Thymidine, 3′-amino-P,3′-dideoxy-5′-O-[dimethyl(1,1,2-trimethylpropyl)silyl]-P-methylthymidylylmethylene-(3′→5′)-5′-deoxy-, 3′-benzoate

Thymidine, 5′-deoxy-5′-[(1,1-diethoxyethyl)methylphosphinyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Thymidine, 5′-deoxy-5′-(hydroxyphosphinyl)-

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

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

Thymidine, 3′-de(phosphinicooxy)thymidylylmethyleneimino(ethoxyphosphinylidene)-(3′→5′)-5′-deoxy-

Cytidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′,5′-dideoxy-5′-(hydroxyphosphinyl)-5-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Cytidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′,5′-dideoxy-5′-(hydroxyphosphinyl)-5-methyl-

Cytidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′,5′-dideoxy-5′-[ethoxy[1-methyl-1-[(trimethylsilyl)oxy]ethyl]phosphinyl]-5-methyl-

1-[3-O-[Bis(4-methoxyphenyl)phenylmethyl]-2,5-dideoxy-5-[ethoxy[1-methyl-1-[(trimethylsilyl)oxy]ethyl]phosphinyl]-β-D-erythro-pentofuranosyl]-5-methyl-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

Thymidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-5′-deoxy-5′-[ethoxy[1-methyl-1-[(trimethylsilyl)oxy]ethyl]phosphinyl]-

Thymidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-5′-deoxy-5′-(hydroxyphosphinyl)-

Thymidine, 3′-O-[bis(4-methoxyphenyl)phenylmethyl]-5′-deoxy-5′-[ethoxy[1-hydroxy-1-methylethyl]phosphinyl]-

Thymidine, 5′-deoxy-5′-[ethoxy(1-hydroxy-1-methylethyl)phosphinyl]-

Thymidine, 5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-[ethoxy[1-methyl-1-[(trimethylsilyl)oxy]ethyl]phosphinyl]-