N-[(3aR,4R,13R,13aR)-3a,4,8,9,13,13a-Hexahydro-2,2-dimethyl-8-oxo-4,13-epoxy-5H-1,3-dioxolo[5,6][1,3]oxazocino[3,2-e]purin-10-yl]acetamide

Inosine, 7,8-dihydro-8-oxo-1-(phenylmethyl)-7-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-, 2′,3′,5′-triacetate

Guanosine, 7,8-dihydro-6-O-[2-(4-nitrophenyl)ethyl]-8-oxo-7-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-N-(triphenylmethyl)-, 2′,3′,5′-triacetate

Guanosine, 6-O-[2-(4-nitrophenyl)ethyl]-8-[(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)oxy]-N-(triphenylmethyl)-, 2′,3′,5′-triacetate

Inosine, 7,8-dihydro-8-oxo-6-O-(phenylmethyl)-7-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-, 2′,3′,5′-triacetate

Inosine, 6-O-(phenylmethyl)-8-[(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)oxy]-, 2′,3′,5′-triacetate

Adenosine, 8-[[2,3,4,6-tetrakis-O-(phenylmethyl)-α-D-mannopyranosyl]oxy]-N-(triphenylmethyl)-, 2′,3′,5′-triacetate

Adenosine, 7,8-dihydro-8-oxo-N-(triphenylmethyl)-, 2′,3′,5′-triacetate

5′-Guanylic acid, 2-pyridyl ester

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N,N-dimethyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N,N-dimethyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-acetate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-

Inosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-1-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Inosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-1-methyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-