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

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-(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

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-2,4(1H,3H)-pyrimidinedione

N-[1-[(1R,3R,4R,7S)-1-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-5-(5-methyl-1,2,4-oxadiazol-3-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-(5-methyl-1,2,4-oxadiazol-3-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-(5-methyl-1,2,4-oxadiazol-3-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-(5-methyl-1,2,4-oxadiazol-3-yl)-2-oxa-5-azabicyclo[2.2.1]hept-3-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

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

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

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

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

(1R,3R,4R,7S)-3-(6-Amino-9H-purin-9-yl)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-5-(1,5-dimethyl-1H-1,2,4-triazol-3-yl)-2-oxa-5-azabicyclo[2.2.1]heptan-7-ol

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

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