5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-P(O)-(2-cyanoethyl)-P-deoxo-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-2′-deoxy-2′-[[(phenylmethoxy)carbonyl]amino]-N-(2-methyl-1-oxopropyl)-3′-guanylic acid

2′-Deoxy-N-(2-methyl-1-oxopropyl)-2′-[[(phenylmethoxy)carbonyl]amino]-3′-guanylic acid

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-2′-[[(phenylmethoxy)carbonyl]amino]-, 3′-(2-cyanoethyl hydrogen phosphite)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-2′-[[(phenylmethoxy)carbonyl]amino]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-2′-[[(phenylmethoxy)carbonyl]amino]guanosine

2′-Amino-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanosine

2′-Azido-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)guanosine

2′-Azido-2′-deoxy-N-(2-methyl-1-oxopropyl)guanosine

(3aS,4S,6aR)-N-[4-[[6-[[(2E)-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-propen-1-yl]amino]-6-oxohexyl]amino]-4-oxobutyl]hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanamide

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-O-[2-[(trifluoroacetyl)amino]ethyl]-, 4-[(1-methyl-2-pyrrolidinylidene)hydrazone], 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 5-methyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-2′-O-[2-[(trifluoroacetyl)amino]ethyl]-, 4-[(1-methyl-2-pyrrolidinylidene)hydrazone]

Uridine, 2′-O-(2-azidoethyl)-5-methyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-, 4-[(1-methyl-2-pyrrolidinylidene)hydrazone]

Uridine, 5-methyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-2′-O-[2-[(trifluoroacetyl)amino]ethyl]-