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

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

2-(Trimethylsilyl)ethyl 3-[(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]-9,9-dimethyl-5-oxo-6-oxa-2,4-diaza-9-siladec-2-enoate

2-(Trimethylsilyl)ethyl 3-[(1R,3R,4R,7S)-3-[4-(benzoylamino)-2-oxo-1(2H)-pyrimidinyl]-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-2-oxa-5-azabicyclo[2.2.1]hept-5-yl]-9,9-dimethyl-5-oxo-6-oxa-2,4-diaza-9-siladec-3-enoate

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

2-[(2-Methyl-1-oxopropyl)amino]-9-[(1R,6R,8R,9S)-9-(phenylmethoxy)-6-[(phenylmethoxy)methyl]-7-oxa-2-azabicyclo[4.2.1]non-8-yl]-9H-purin-6-yl N,N-diphenylcarbamate

N-[9-[(1R,6R,8R,9S)-9-(Phenylmethoxy)-6-[(phenylmethoxy)methyl]-7-oxa-2-azabicyclo[4.2.1]non-8-yl]-9H-purin-6-yl]benzamide

Carbamic acid, N,N-diphenyl-, 2-[(2-methyl-1-oxopropyl)amino]-9-[(1R,5R,7R,8S)-8-(phenylmethoxy)-5-[(phenylmethoxy)methyl]-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-9H-purin-6-yl ester

5-Methyl-1-[(1R,6R,8R,9S)-9-(phenylmethoxy)-6-[(phenylmethoxy)methyl]-7-oxa-2-azabicyclo[4.2.1]non-8-yl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5,6,7-trideoxy-7-[[(1,1-dimethylethoxy)carbonyl]amino]-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-2-O-[(trifluoromethyl)sulfonyl]-α-L-xylo-heptofuranosyl]-2,4(1H,3H)-pyrimidinedione

Carbamic acid, N-[3-[(2R,3S,3aS,9aR)-3a,9a-dihydro-7-methyl-6-oxo-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-2H,3H,6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-2-yl]propyl]-, 1,1-dimethylethyl ester

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]-