Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[[1-[(9H-fluoren-9-ylmethoxy)carbonyl]-2-piperidinyl]methyl](phenylmethyl)amino]ethyl carbonate]

Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[[1-[[(1,1-dioxidobenzo[b]thien-2-yl)methoxy]carbonyl]-2-piperidinyl]methyl](phenylmethyl)amino]ethyl carbonate]

Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[(phenylmethyl)(2-piperidinylmethyl)amino]ethyl carbonate]

Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[[1-[(1,1-dimethylethoxy)carbonyl]-2-piperidinyl]methyl](phenylmethyl)amino]ethyl carbonate]

7-[(5S)-2,3-O-(1-Methylethylidene)-5-C-phenyl-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

Cytidine 5′-(heptahydrogen hexaphosphate), 2′-deoxy-, P′′′′′-[11-[(4-formylbenzoyl)amino]undecyl] ester

1,1-Dimethylethyl (2R,3S,5R)-5-(4-amino-2-oxo-1(2H)-pyrimidinyl)tetrahydro-3-[[(2,4,6-trimethoxyphenyl)methyl]thio]-2-furanpropanoate

4-Amino-1-[(2R,3aS,7aR)-hexahydro-5-oxo-2H-thiopyrano[3,2-b]furan-2-yl]-2(1H)-pyrimidinone

1-[(2R,3aS,7aR)-Hexahydro-5-oxo-2H-thiopyrano[3,2-b]furan-2-yl]-4-[[1-(6-nitro-1,3-benzodioxol-5-yl)ethyl]amino]-2(1H)-pyrimidinone