Uridine, 2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-C-2-propenyl-

1-[2-O-[(1,1-Dimethylethyl)dimethylsilyl]-3-C-2-propen-1-yl-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)diphenylsilyl]-3-C-2-propen-1-yl-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-C-2-propen-1-yl-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[2,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-C-2-propen-1-yl-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-2′-O-[(1,1-dimethylethyl)diphenylsilyl]-3′-oxo-

2,4(1H,3H)-Pyrimidinedione, 1-[(3ξ)-5,6-di-O-acetyl-3-S-butyl-2-deoxy-3-thio-D-erythro-hexofuranosyl]-5-methyl-

2,4(1H,3H)-Pyrimidinedione, 1-[(3ξ)-5,6-di-O-acetyl-2-deoxy-3-S-propyl-3-thio-D-erythro-hexofuranosyl]-5-methyl-

2,4(1H,3H)-Pyrimidinedione, 1-[(3ξ)-5,6-di-O-acetyl-2-deoxy-3-S-ethyl-3-thio-D-erythro-hexofuranosyl]-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-[2-[[2-[bis[2-[(trifluoroacetyl)amino]ethyl]amino]ethyl]amino]-2-oxoethyl]-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-[2-[[2-[bis[2-[(trifluoroacetyl)amino]ethyl]amino]ethyl]amino]-2-oxoethyl]-2′-deoxy-

Cytidine, 5-[2-[[2-[bis[2-[(trifluoroacetyl)amino]ethyl]amino]ethyl]amino]-2-oxoethyl]-2′-deoxy-

Methyl 4-amino-1-(3,5-di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-5-pyrimidineacetate

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-8-methyl-N-(2-methyl-1-oxopropyl)-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-8-methyl-N-(2-methyl-1-oxopropyl)-