Thymidine, P-[(1S)-2-cyano-1-(1H-indol-2-ylmethyl)ethyl]-P-deoxythymidylyl-(3′→5′)-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1R,3R)-3-(cyanomethyl)-3,4-dihydro-1H-[1,3,2]oxazaphosphorino[3,4-a]indol-1-yl]-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1S,3S)-3-(cyanomethyl)-3,4-dihydro-1H-[1,3,2]oxazaphosphorino[3,4-a]indol-1-yl]-

Thymidine 5′-(trihydrogen diphosphate), P′-(2,6-dideoxy-α-D-threo-hexopyranos-4-ulos-1-yl) ester

Thymidine 5′-(trihydrogen diphosphate), P′-[(2R,6R)-tetrahydro-6-methyl-4,5-dioxo-2H-pyran-2-yl] ester

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)uridine

2′-O-(2,3,4,6-Tetra-O-benzoyl-β-D-glucopyranosyl)uridine

2′-O-(2,3,4,6-Tetra-O-benzoyl-β-D-glucopyranosyl)-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine

N-[3-[2-Amino-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]-6-[(4-amino-1-oxobutyl)amino]hexanamide

4-Amino-N-[7-[4-amino-7-[2-deoxy-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-6-heptyn-1-yl]butanamide