1-[(1R,4S,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-methyl-2,7-dioxabicyclo[3.2.1]oct-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-4′-C-(2-propen-1-yloxy)-, 2′-(1H-imidazole-1-carbothioate)

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-4′-C-(2-propen-1-yloxy)uridine

(1R,4R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-methyl-2,7-dioxabicyclo[3.2.1]oct-8-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

1-[(1R,4R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-hydroxy-4-methyl-2,7-dioxabicyclo[3.2.1]oct-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1R,4R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-methyl-2,7-dioxabicyclo[3.2.1]oct-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(1R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-methylene-2,7-dioxabicyclo[3.2.1]oct-8-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

1-[(1R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-methylene-2,7-dioxabicyclo[3.2.1]oct-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-4′-C-(2-propyn-1-yloxy)-, 2′-(1H-imidazole-1-carbothioate)

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-4′-C-(2-propyn-1-yloxy)uridine

3′-O-[(1,1-Dimethylethyl)dimethylsilyl]-5-methyl-4′-C-(2-propyn-1-yloxy)uridine

1-[(1R,5R,6R,8S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-hydroxy-4-methylene-2,7-dioxabicyclo[3.2.1]oct-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2R,3R,4S,5R)-2-[6-Amino-2-(dimethylamino)-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[(1S)-2-(4-methoxyphenyl)-1-methylethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[1-methyl-2-[4-(trifluoromethyl)phenyl]ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol