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

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-5-[3-[(trifluoroacetyl)amino]propyl]-

Uridine, 2′-O-methyl-5-[3-[(trifluoroacetyl)amino]propyl]-, 3′,5′-diacetate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-5-[[methyl(trifluoroacetyl)amino]methyl]-

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

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

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

(2R,3R,4S,5S)-2-[2-Chloro-6-[(1-naphthalenylmethyl)amino]-9H-purin-9-yl]-5-(3-ethyl-5-isoxazolyl)tetrahydro-3,4-furandiol

4-[2-[[2-Chloro-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-6-yl]amino]ethyl]benzenesulfonamide

(2R,3R,4S,5R)-2-[2-Chloro-6-[(9H-fluoren-9-ylmethyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

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

(2R,3R,4S,5S)-2-[6-[[2,2-Bis(4-methoxyphenyl)ethyl]amino]-2-chloro-9H-purin-9-yl]-5-(3-ethyl-5-isoxazolyl)tetrahydro-3,4-furandiol

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

(2R,3R,4S,5R)-2-[2-Chloro-6-[[(1S)-1-(hydroxymethyl)-2-phenylethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5S)-2-[6-[[2,2-Bis(4-hydroxyphenyl)ethyl]amino]-2-chloro-9H-purin-9-yl]-5-(3-ethyl-5-isoxazolyl)tetrahydro-3,4-furandiol

(2R,3R,4S,5S)-2-[2-Chloro-6-[[(1S)-1-(hydroxymethyl)-2-phenylethyl]amino]-9H-purin-9-yl]-5-(3-ethyl-5-isoxazolyl)tetrahydro-3,4-furandiol

2-[[(3R)-1-[6-[(2,2-Diphenylethyl)amino]-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-2-yl]-3-pyrrolidinyl]amino]-2-oxoacetic acid

Methyl 2-[[(3R)-1-[6-[(2,2-diphenylethyl)amino]-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-2-yl]-3-pyrrolidinyl]amino]-2-oxoacetate

3-[[(Cyanoamino)[[(3R)-1-[6-[(2,2-diphenylethyl)amino]-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-2-yl]-3-pyrrolidinyl]imino]methyl]amino]benzenesulfonamide

N-[(3R)-1-[6-[(2,2-Diphenylethyl)amino]-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-2-yl]-3-pyrrolidinyl]-4-hydroxybenzenecarboximidamide