6-Azido-1-[(2R,5S)-3,3-difluorotetrahydro-5-[(phosphonooxy)methyl]-2-furanyl]-5-fluoro-2,4(1H,3H)-pyrimidinedione

Methyl 4-(2-phenylethynyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazole-3-carboxylate

2'-O-[(1,1-Dimethylethyl)dimethylsilyl]-3'-C-ethynylcytidine

2',5'-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3'-C-ethynylcytidine

5'-O-[(1,1-Dimethylethyl)diphenylsilyl]-3'-C-ethynylcytidine

5'-O-[Dimethyl(1,1,2-trimethylpropyl)silyl]-3'-C-ethynylcytidine

5'-O-(Dimethylphenylsilyl)-3'-C-ethynylcytidine

3'-Azido-2',3'-dideoxy-6-thioguanosine 5'-(tetrahydrogen triphosphate)

2',5'-Bis-O-[dimethyl(1,1,2-trimethylpropyl)silyl]-3'-C-ethynylcytidine

5-(5-Azidopentyl)-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

N-[3-[[3-(4-Azido-5-chloro-2-pyridinyl)-1-oxopropyl]amino]-1-propen-1-yl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

2-Ethynyl-2',3'-O-(1-methylethylidene)-5'-adenylic acid

5-(3-Aminophenyl)-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

2-Amino-8-chloroadenosine 5'-(tetrahydrogen triphosphate)

5-Methyl-1-(5-O-phosphono-α-D-ribofuranosyl)-1H-benzimidazole

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-2'-deoxy-5-methylcytidine

Uridine, 5-[[3',6'-bis(acetyloxy)-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl]ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-, 3'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 2'-[[[4-[[10-(phenylethynyl)-9-anthracenyl]ethynyl]phenyl]methyl]carbamate]

Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-5-[[4-(1,3-dioxan-2-yl)phenyl]ethynyl]-, 3'-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

1,1-Dimethylethyl 5-ethynyl-3,6-dihydro-2,6-dioxo-3-(2,3,5-tri-O-acetyl-β-D-arabinofuranosyl)-1(2H)-pyrimidinecarboxylate

Gougerotin