Thymidine, N-benzoyl-P-deoxo-P,2′-dideoxy-P-methylcytidylyl-(3′→5′)-

Thymidine, N-(2-aminoethyl)-P-deoxo-P,2′-dideoxy-P-methylcytidylyl-(3′→5′)-

Cytidine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-[P-methyl-N,N-bis(1-methylethyl)phosphonamidite]

Cytidine, N-acetyl-2′-deoxy-, 3′-[P-methyl-N,N-bis(1-methylethyl)phosphonamidite]

Thymidine, 3′-azido-3′-deoxy-P-(2,2,2-trifluoroethyl)thymidylyl-(5′→5′)-3′-azido-3′-deoxy-

Thymidine, 3′-O-ethyl-P-(2,2,2-trifluoroethyl)thymidylyl-(5′→5′)-3′-O-ethyl-

Cytidine, N-benzoyl-2′-deoxy-, 3′-[P-methyl-N,N-bis(1-methylethyl)phosphonamidite]

Thymidine, 3′-O-acetyl-P-(2,2,2-trifluoroethyl)thymidylyl-(5′→5′)-, 3′-acetate

Thymidine, 3′-O-ethyl-P-(2,2,2-trichloroethyl)thymidylyl-(5′→5′)-3′-O-ethyl-

Thymidine, 3′-O-methyl-P-(2,2,2-trichloroethyl)thymidylyl-(5′→5′)-3′-O-methyl-

Thymidine, 3′-O-acetyl-P-(2,2,2-trichloroethyl)thymidylyl-(5′→5′)-, 3′-acetate

Thymidine, P-(2,2-dichloroethyl)-3′-O-ethylthymidylyl-(5′→5′)-3′-O-ethyl-

Thymidine, P-(2,2-dichloroethyl)-3′-O-methylthymidylyl-(5′→5′)-3′-O-methyl-

Thymidine, 3′-O-acetyl-P-(2,2-dichloroethyl)thymidylyl-(5′→5′)-, 3′-acetate

Thymidine, 3′-azido-3′-deoxy-P-phenylthymidylyl-(5′→5′)-3′-azido-3′-deoxy-

Thymidine, P-phenyl-3′-O-propylthymidylyl-(5′→5′)-3′-O-propyl-

Thymidine, 3′-O-ethyl-P-phenylthymidylyl-(5′→5′)-3′-O-ethyl-

Thymidine, 3′-O-methyl-P-phenylthymidylyl-(5′→5′)-3′-O-methyl-

3′-O-Propylthymidine

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-dephosphinicothymidylyl[bis(trifluoromethyl)methylene]-(3′→5′)-, 3′-(hydrogen phosphonate)