Cytidine, N-benzoyl-2′-deoxy-, 3′-acetate 5′-[2-[[(4-ethynylphenyl)methyl][[1-[(1-methyl-1-tricyclo[3.3.1.13,7]dec-1-ylethoxy)carbonyl]-2-piperidinyl]methyl]amino]ethyl carbonate]

Thymidine, 3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 5′-[2-[[(4-ethynylphenyl)methyl](2-piperidinylmethyl)amino]ethyl carbonate]

Thymidine, 5′-[2-[[(4-ethynylphenyl)methyl][[1-[(1-methyl-1-tricyclo[3.3.1.13,7]dec-1-ylethoxy)carbonyl]-2-piperidinyl]methyl]amino]ethyl carbonate]

Thymidine, 3′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 5′-[2-[[(4-ethynylphenyl)methyl][[1-[(1-methyl-1-tricyclo[3.3.1.13,7]dec-1-ylethoxy)carbonyl]-2-piperidinyl]methyl]amino]ethyl carbonate]

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[(4-ethynylphenyl)methyl](2-piperidinylmethyl)amino]ethyl carbonate]

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[(4-ethynylphenyl)methyl][[1-[(2-propen-1-yloxy)carbonyl]-2-piperidinyl]methyl]amino]ethyl carbonate]

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-[3-[[[3′,6′-bis(dimethylamino)-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-6-yl]carbonyl]amino]-1-propyn-1-yl]-

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-[3-[[[3′,6′-bis(dimethylamino)-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-6-yl]carbonyl]amino]-1-propyn-1-yl]-, 3′-[2-[[[1-[(1,1-dimethylethoxy)carbonyl]-2-piperidinyl]methyl][[4-[1-[2-[2-(2-hydroxyethoxy)ethoxy]ethyl]-1H-1,2,3-triazol-..

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-[3-[[[3′,6′-bis(dimethylamino)-3-oxospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-6-yl]carbonyl]amino]-1-propyn-1-yl]-, 3′-[2-[[[1-[(1,1-dimethylethoxy)carbonyl]-2-piperidinyl]methyl][(4-ethynylphenyl)methyl]amino]ethyl carbonate]

Uridine, 5-(3-amino-1-propyn-1-yl)-2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[[1-[(1,1-dimethylethoxy)carbonyl]-2-piperidinyl]methyl][(4-ethynylphenyl)methyl]amino]ethyl carbonate]

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-[3-[(2,2,2-trifluoroacetyl)amino]-1-propyn-1-yl]-, 3′-[2-[[[1-[(1,1-dimethylethoxy)carbonyl]-2-piperidinyl]methyl][(4-ethynylphenyl)methyl]amino]ethyl carbonate]

Uridine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-[3-[(2,2,2-trifluoroacetyl)amino]-1-propyn-1-yl]-, 3′-(1H-imidazole-1-carboxylate)

Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[2-[[(4-ethynylphenyl)methyl](2-piperidinylmethyl)amino]ethyl carbonate]

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

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

Thymidine, 5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-[1-phenyl-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]-1-phenylethyl carbonate]

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

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