Uridine, 2′-O-[2-[[2,3-bis(acetyloxy)propyl]amino]-2-oxoethyl]-3-[(2,2-dimethyl-1-oxopropoxy)methyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

3-[(2,2-Dimethyl-1-oxopropoxy)methyl]-2′-O-[2-oxo-2-(phenylmethoxy)ethyl]-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine

Guanosine, 2′,3′,5′-tris-O-[(1,1-dimethylethyl)dimethylsilyl]-N-[3-(2-methyl-1,3-dithiolan-2-yl)-1-oxopropyl]-

Phosphonic acid, [[(3S,5R)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-(5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-3-isoxazolidinyl]methyl]-, diethyl ester

Phosphonic acid, [[(3S,5S)-5-(acetyloxy)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-3-isoxazolidinyl]methyl]-, diethyl ester

Phosphonic acid, [[(3R,5S)-5-(acetyloxy)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-3-isoxazolidinyl]methyl]-, diethyl ester

Phosphonic acid, [[(3S,5S)-2-[5-O-[(1,1-dimethylethyl)diphenylsilyl]-2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-5-(5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-3-isoxazolidinyl]methyl]-, diethyl ester

5′-Uridylic acid, 2′-O-[(2-cyanoethoxy)methyl]-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(2-cyanoethoxy)methyl]-N-(2-phenoxyacetyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

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

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

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

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(2-cyanoethoxy)methyl]-N-(2-phenoxyacetyl)guanosine

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(2-cyanoethoxy)methyl]cytidine

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(2-cyanoethoxy)methyl]adenosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(2-cyanoethoxy)methyl]uridine

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(2-cyanoethoxy)methyl]-N-(phenoxyacetyl)-

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(2-cyanoethoxy)methyl]cytidine

Adenosine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(2-cyanoethoxy)methyl]-

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(2-cyanoethoxy)methyl]uridine