N-[9-[(5R,7R,8R,12aR,14R,15aS,16R)-2-(2-Cyanoethoxy)-7-[1,6-dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]decahydro-16-methoxy-2,10,10-trioxido-5,8-methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-14-yl]-9H-purin-6-yl]benzamide

2'-O-Dephosphinico-3'-O-methyl-N-(2-methyl-1-oxopropyl)-2'-O-(sulfonylimino)guanylyl-(2'→5')-N-benzoyl-2',5'-dideoxyadenosine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-dephosphinico-3'-O-methyl-N-(2-methyl-1-oxopropyl)-2'-O-(sulfonylimino)guanylyl-(2'→5')-N-benzoyl-2',5'-dideoxyadenosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinico-3′-O-methyl-N-(2-methyl-1-oxopropyl)-2′-O-(sulfonylimino)guanylyl-(2′→5′)-N-benzoyl-2′,5′-dideoxy-3′-[(1,1-dimethylethyl)dimethylsilyl]adenosine

N-Benzoyl-2′,5′-dideoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-[[(4-nitrophenoxy)sulfonyl]amino]adenosine

Adenosine, 2′,5′-dideoxy-2′-fluoro-5′-(sulfoamino)adenylyl-(3′→5′)-3′-deoxy-3′-fluoro-, cyclic ester

Adenosine, N-benzoyl-P-(2-cyanoethyl)-2′,5′-dideoxy-2′-fluoro-5′-(sulfoamino)adenylyl-(3′→5′)-N-benzoyl-3′-deoxy-3′-fluoro-, cyclic ester

N-Benzoyl-3'-deoxy-2'-O-dephosphinico-3'-fluoro-2'-O-(sulfonylimino)adenylyl-(2'→5')-N-benzoyl-2',5'-dideoxy-2'-fluoroadenosine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-deoxy-2'-O-dephosphinico-N-(2-methyl-1-oxopropyl)-2'-O-(sulfonylimino)guanylyl-(2'→5')-N-benzoyl-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2',5'-dideoxy-2'-fluoroadenosine

N-Benzoyl-3′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′,5′-dideoxy-2′-fluoro-5′-[[(4-nitrophenoxy)sulfonyl]amino]adenosine

5'-Amino-N-benzoyl-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2',5'-dideoxy-2'-fluoroadenosine

5'-Azido-N-benzoyl-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2',5'-dideoxy-2'-fluoroadenosine

2-Amino-9-[(5R,7R,8R,12aR,14R,15S,15aR,16R)-14-(6-amino-9H-purin-9-yl)-15-fluorodecahydro-2-hydroxy-16-methoxy-2,10,10-trioxido-5,8-methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-7-yl]-1,9-dihydro-6H-purin-6-one

N-[9-[(5R,7R,8R,12aR,14R,15S,15aR,16R)-2-(2-Cyanoethoxy)-7-[1,6-dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]-15-fluorodecahydro-16-methoxy-2,10,10-trioxido-5,8-methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-14-yl]-9H-purin-6-yl]benzamide

2′-O-Dephosphinico-3′-O-methyl-N-(2-methyl-1-oxopropyl)-2′-O-(sulfonylimino)guanylyl-(2′→5′)-N-benzoyl-2′,5′-dideoxy-2′-fluoro-β-D-arabino-adenosine

Guanosine, 2′,5′-dideoxy-2′-fluoro-5′-(sulfoamino)-β-D-arabino-adenylyl-(3′→5′)-3′-deoxy-, cyclic ester

N-[9-[(5S,7R,8R,12aR,14R,15S,15aR)-2-(2-Cyanoethoxy)-7-[1,6-dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]-15-fluorodecahydro-2,10,10-trioxido-5,8-methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-14-yl]-9H-purin-6-yl]benzamide

3′-Deoxy-2′-O-dephosphinico-N-(2-methyl-1-oxopropyl)-2′-O-(sulfonylimino)guanylyl-(2′→5′)-N-benzoyl-2′,5′-dideoxy-2′-fluoro-β-D-arabino-adenosine

5,8-Methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecine-15,16-diol, 7,14-bis(6-amino-9H-purin-9-yl)decahydro-2-hydroxy-, 2,10,10-trioxide, (5R,7R,8R,12aR,14R,15R,15aS,16R)-

5,8-Methanofuro[2,3-m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecine-15,16-diol, 14-(6-amino-9H-purin-9-yl)-7-(2,6-diamino-9H-purin-9-yl)decahydro-2-hydroxy-, 2,10,10-trioxide, (5R,7R,8R,12aR,14R,15R,15aS,16R)-