Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[2-[2-[(1,1-dimethylethyl)dithio]-1H-imidazol-1-yl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

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

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-N-[2-[4-(1-methylethyl)phenoxy]acetyl]-, 3′-[3-butyn-1-yl N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-N-(2-phenoxyacetyl)-, 3′-[3-butyn-1-yl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[3-butyn-1-yl N,N-bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-N-[2-[4-(1-methylethyl)phenoxy]acetyl]-, 3′-[4-[(1,1-dimethylethyl)dithio]butyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-, 3′-[2-[2-[(1,1-dimethylethyl)dithio]phenyl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[2-[5-bromo-2-[(1,1-dimethylethyl)dithio]phenyl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[2-[2-[(1,1-dimethylethyl)dithio]-4-methylphenyl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[2-[2-[(1,1-dimethylethyl)dithio]-3-methylphenyl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[2-[2-[(1,1-dimethylethyl)dithio]-6-methylphenyl]ethyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-fluoro-, 3′-[4-[[4-[[2-[[4-(5,5-diethyl-1,3-dioxan-2-yl)benzoyl]amino]ethyl]amino]-1,1-dimethyl-4-oxobutyl]dithio]butyl N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-, 3′-[4-[[4-[[[4-(5,5-diethyl-1,3-dioxan-2-yl)phenyl]methyl]amino]-1,1-dimethyl-4-oxobutyl]dithio]butyl [P(R)]-N,N-bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-, 3′-[4-[[4-[[[4-(5,5-diethyl-1,3-dioxan-2-yl)phenyl]methyl]amino]-1,1-dimethyl-4-oxobutyl]dithio]butyl [P(S)]-N,N-bis(1-methylethyl)phosphoramidite]

Benzamide, N-[1-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl]-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinyl]-4-methyl-

p-Toluamide, N-[1-(2-deoxy-α-D-erythro-pentofuranosyl)-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinyl]-, di-p-toluate (ester)

β-D-arabino-Cytidylyl-(2′→5′)-thymidine

N-Benzoyl-5′-O-(triphenylmethyl)adenosine

(5R,6R)-[5,5′′:6,6′′-Dicyclo]-(5S,6S)-P-(2-cyanoethyl)-5,6-dihydrothymidylyl-(3′→5′)-5,6-dihydrothymidine

Propanenitrile, 3-[[hexadecahydro-10-hydroxy-3-(hydroxymethyl)-15a,15b-dimethyl-6-oxido-13,15,16,18-tetraoxo-9,12-epoxy-1,4-methano-1H,6H,8H-2,5,7-trioxa-12a,14,17,18a-tetraaza-6-phosphacyclohexadeca[def]biphenylen-6-yl]oxy]-, [1R-(1R*,3R*,4S*,9R*,10S*,12R*,15aS*,15bR*,18bR*,18cS*)]-