Thymidine, 5′-[[(2-O-acetyl-5-O-benzoyl-3-deoxy-1-S-phenyl-1-thio-β-D-ribofuranos-3-yl)acetyl]amino]-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Cytidine, 3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Uridine, 3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-

Cytidine, 3′-de(phosphinicooxy)thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

1-[5-Amino-5-deoxy-3-O-[(1,1-dimethylethyl)diphenylsilyl]-2-O-methyl-β-D-ribofuranosyl]-4-diazenyl-5-methyl-2(1H)-pyrimidinone

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Uridine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyluridylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-

Thymidine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Uridine, 3′-de(phosphinicooxy)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]thymidylyl(2-oxo-1,2-ethanediyl)imino-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-

Cytidine, 5′-amino-2′,5′-dideoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-N-(1-methyl-2-pyrrolidinylidene)-

Carbonothioic acid, O-[2-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]-2,3,3a,9a-tetrahydro-7-methyl-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl] O-(4-methylphenyl) ester, [2R-(2α,3β,3aβ,9aβ)]-

Uridine, 5′-amino-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2′-O-methyl-

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,3-dihydro-8-phenyl-2H-purin-2-one