Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[[(2-cyanoethoxy)carbonyl]amino]hexyl]-5-methyl-

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

Uridine, 2′-O-[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethyl]-5-methyl-

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-α-L-erythro-pentofuranosyl]-2,4(1H,3H)-pyrimidinedione

Thymidine, P-[bis(1-methylethyl)amino]-P-deoxo-P-deoxythymidylyl-(3′→5′)-

N-[9-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-5-(methylsulfonyl)-7-[(trimethylsilyl)oxy]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[9-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-[(trimethylsilyl)oxy]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N′-[9-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(methylsulfonyl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide

2-Amino-9-[(1R,3R,4R,7S)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(methylsulfonyl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-1,9-dihydro-6H-purin-6-one

4-Amino-1-[(1R,3R,4R,7S)-7-hydroxy-1-(hydroxymethyl)-5-(methylsulfonyl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-2(1H)-pyrimidinone

4-Amino-5-methyl-1-[(1R,3R,4R,7S)-5-(methylsulfonyl)-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-2(1H)-pyrimidinone

5-Methyl-1-[(1R,3R,4R,7S)-5-(methylsulfonyl)-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

5-Methyl-1-[(1R,3R,4R,7S)-5-(methylsulfonyl)-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-2,4(1H,3H)-pyrimidinedione

4-Amino-1-[(1R,3R,4R,7S)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(methylsulfonyl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-2(1H)-pyrimidinone

1-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-5-(methylsulfonyl)-7-[(trimethylsilyl)oxy]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

N-[1-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(3-methyl-1,2,4-thiadiazol-5-yl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl]benzamide

4-Amino-1-[(1R,3R,4R,7S)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(3-methyl-1,2,4-thiadiazol-5-yl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-2(1H)-pyrimidinone

1-[(1R,3R,4R,7S)-7-(Acetyloxy)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-5-(3-methyl-1,2,4-thiadiazol-5-yl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

1-[(1R,3R,4R,7S)-7-(Acetyloxy)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-5-(3-methyl-1,2,4-thiadiazol-5-yl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione