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

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(3-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-bromophenyl)-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-chlorophenyl)-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-fluorophenyl)-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-phenylethyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

1-[2,3-Dideoxy-3-(hydroxymethylamino)-α-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methylamino]-α-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 1-[3-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methylamino]-2-Se-phenyl-2-seleno-α-L-arabinofuranosyl]-5-methyl-