2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-(3-aminopropyl)-3a,9a-dihydro-7-methyl-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2R,3S,3aS,9aR)-

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-(3-azidopropyl)-3a,9a-dihydro-7-methyl-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2R,3S,3aS,9aR)-

Uridine, 4′-C-(3-azidopropyl)-3′,5′-bis-O-(phenylmethyl)-5-methyl-, 2′-acetate

N-[9-[(1R,3R,4R,6S,7S)-6-Methyl-7-[(trimethylsilyl)oxy]-1-[[(trimethylsilyl)oxy]methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-9H-purin-6-yl]benzamide

2-[(2-Methyl-1-oxopropyl)amino]-9-[(1R,3R,4R,6R,7S)-6-methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-9H-purin-6-yl N,N-diphenylcarbamate

2-[(2-Methyl-1-oxopropyl)amino]-9-[(1R,3R,4R,6S,7S)-6-methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-9H-purin-6-yl N,N-diphenylcarbamate

Benzamide, N-[9-[(1R,3R,4R,6R,7S)-6-methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-9H-purin-6-yl]-

N-[9-[(1R,3R,4R,6S,7S)-6-Methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-9H-purin-6-yl]benzamide

5-Methyl-1-[(1R,3R,4R,6R,7S)-6-methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[(1R,3R,4R,6S,7S)-6-methyl-7-(phenylmethoxy)-1-[(phenylmethoxy)methyl]-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-2,4(1H,3H)-pyrimidinedione

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-(1-azidoethyl)-3a,9a-dihydro-7-methyl-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2R,3S,3aS,9aR)-

4′-C-(1-Azidoethyl)-5-methyl-3′,5′-bis-O-(phenylmethyl)uridine

Uridine, 4′-C-(1-azidoethyl)-5-methyl-3′,5′-bis-O-(phenylmethyl)-, 2′-acetate

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

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-(azidomethyl)-3a,9a-dihydro-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2R,3S,3aS,9aR)-

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 3a,9a-dihydro-2-[[(methylsulfonyl)oxy]methyl]-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2S,3S,3aS,9aR)-

(2R,3S,3aS,9aR)-2,3,3a,9a-Tetrahydro-2-(hydroxymethyl)-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one

2H,3H,6H-Furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one, 2-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]-3a,9a-dihydro-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2S,3S,3aS,9aR)-

1,1-Dimethylethyl N-[[(1R,3R,4R,7S)-3-[4-(benzoylamino)-2-oxo-1(2H)-pyrimidinyl]-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-2-oxa-5-azabicyclo[2.2.1]hept-5-yl][[(1,1-dimethylethoxy)carbonyl]amino]methylene]carbamate