Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[4-[3-(trifluoromethyl)-3H-diazirin-3-yl]phenyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[4-[3-(trifluoromethyl)-3H-diazirin-3-yl]phenyl]-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[4-oxo-4-[(phenylmethyl)amino]butanoate]

Guanosine, 5′-O-[[[6-[(6-chloro-9-methyl-2-acridinyl)oxy]hexyl]oxy]hydroxyphosphinyl]-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-

Thymidine, 3-(4-methoxybenzoyl)-, 3′-acetate

Thymidine, P-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-(4-methoxybenzoyl)thymidylyl-(3′→5′)-3-(4-methoxybenzoyl)-, 3′-acetate

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-(4-methoxybenzoyl)-, 3′-(hydrogen phosphonate)

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-2-propynyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-2-propynyl-

Adenosine, N-benzoyl-2′-O-2-propynyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Inosine, 6-O-(2,6-dichlorophenyl)-2′-O-2-propynyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Cytidine, N-benzoyl-2′-O-2-propynyl-

Cytidine, N-benzoyl-2′-O-2-propynyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

Uridine, 4-O-(2,6-dichlorophenyl)-2′-O-2-propynyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-

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

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3-[(1,1-dimethylethoxy)methyl]-2′-O-2-propynyl-

Uridine, 3-[(1,1-dimethylethoxy)methyl]-2′-O-2-propynyl-

Uridine, 3-[(2,2-dimethyl-1-oxopropoxy)methyl]-2′-O-2-propynyl-3′,5′-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-