1-(2-Deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-4-(2-oxo-1-pyrrolidinyl)-2(1H)-pyrimidinone

1-(2-Deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)-4-(2-oxo-1-imidazolidinyl)-2(1H)-pyrimidinone

2′-Deoxy-2′,2′-difluoro-N-(3-pyridazinylcarbonyl)cytidine

2′-Deoxy-2′,2′-difluoro-N-[(6-methyl-3-pyridinyl)carbonyl]cytidine

2′-Deoxy-2′,2′-difluoro-N-[(6-fluoro-3-pyridinyl)carbonyl]cytidine

2′-Deoxy-2′,2′-difluoro-N-(2-pyridinylcarbonyl)cytidine

2′-Deoxy-2′,2′-difluoro-N-(3-pyridinylcarbonyl)cytidine

2′-Deoxy-2′-fluoro-3′,5′-bis-O-(trimethylsilyl)cytidine

Adenosine, N-[(2E)-4-hydroxy-3-methyl-2-butenyl]-, cyclic 3′,5′-(hydrogen phosphate)

Adenosine, N-(4-hydroxy-3-methylbutyl)-, cyclic 3′,5′-(hydrogen phosphate)

6-Phenyl-9-β-D-ribofuranosyl-9H-purin-2-amine

6-Phenyl-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-purin-2-amine

Thymidine, [P(S)]-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-methylthymidylylmethylidyne-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, (5′E)-

(5′E)-[P(R)]-5′-O-[(1,1-Dimethylethyl)dimethylsilyl]-P-methylthymidylylmethylidyne-(3′→5′)-5′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]thymidine

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-(methyl phosphonate)

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-[methyl bis(1-methylethyl)phosphoramidite]

1-[(2R,4S,5R)-5-[(1E)-2-Bromoethenyl]-4-[[(1,1-dimethylethyl)diphenylsilyl]oxy]tetrahydro-2-furanyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Thymidine, 5′-(4-nitrobenzoate) 3′-[4-oxo-4-[[2-(1-pyrrolidinyl)ethyl]amino]butanoate]

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

Inosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-1-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]