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

N-Benzoyl-2′-deoxy-3′-O-dephosphinico-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-fluoro-3′-O-(sulfonylimino)adenylyl-(3′→5′)-5′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

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

2-Amino-9-[(5R,7R,8R,10R,12aR,14R,15aS,16R)-14-(6-amino-9H-purin-9-yl)octahydro-10-mercapto-16-methoxy-2,2,10-trioxido-5,8-methano-3H,12H-furo[2,3-m]-1,6,9,11,2,3,10-tetraoxathiaazaphosphacyclotetradecin-7-yl]-1,9-dihydro-6H-purin-6-one

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

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

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-O-dephosphinico-3′-O-(sulfonylimino)adenylyl-(3′→5′)-5′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

5′-Amino-5′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

5′-Azido-5′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

5′-Deoxy-5′-iodo-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

5′-Deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)-5′-[[(4-nitrophenoxy)sulfonyl]amino]guanosine

2-Amino-9-[(2R,5R,7R,8S,12aR,14R,15R,15aR,16R)-14-(6-amino-9H-purin-9-yl)-15-fluorodecahydro-16-hydroxy-2-mercapto-2,10,10-trioxido-5,8-methano-4H-furo[2,3-e][1,7,9,2,3,8]trioxathiaazaphosphacyclotetradecin-7-yl]-1,9-dihydro-6H-purin-6-one

1′a-Carbaguanosine, N-benzoyl-P(O)-(2-cyanoethyl)-2′,5′-dideoxy-2′-fluoro-5′-(sulfoamino)-P-thioadenylyl-(3′→5′)-N-(2-methyl-1-oxopropyl)-3′-O-[3-methoxy-1,1,3,3-tetrakis(1-methylethyl)-1-disiloxanyl]-, cyclic ester

1′a-Carbaguanosine, N-benzoyl-P(O)-(2-cyanoethyl)-P-deoxo-2′,5′-dideoxy-2′-fluoro-5′-(sulfoamino)adenylyl-(3′→5′)-N-(2-methyl-1-oxopropyl)-3′-O-[3-methoxy-1,1,3,3-tetrakis(1-methylethyl)-1-disiloxanyl]-, cyclic ester

2′-O-Dephosphinico-3′-O-[3-methoxy-1,1,3,3-tetrakis(1-methylethyl)-1-disiloxanyl]-N-(2-methyl-1-oxopropyl)-2′-O-(sulfonylimino)-1′a-carbaguanylyl-(2′→5′)-N-benzoyl-2′,5′-dideoxy-2′-fluoroadenosine

2'-O-Dephosphinico-N-(2-methyl-1-oxopropyl)-2'-O-(sulfonylimino)-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-1'a-carbaguanylyl-(2'→5')-N-benzoyl-3'-O-[bis(4-methoxyphenyl)phenylmethyl]-2',5'-dideoxy-2'-fluoroadenosine

2-Amino-9-[(2R,5R,7R,8R,12aR,14R,15S,15aR,16R)-14-(6-amino-9H-purin-9-yl)-15-[[(1,1-dimethylethyl)dimethylsilyl]oxy]decahydro-2-mercapto-16-methoxy-2,10,10-trioxido-5,8-methano-11H-cyclopenta[m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-7-yl]-1,9-dihydro-6H-purin-6-one

2-Amino-9-[(2R,5R,7R,8R,12aR,14R,15S,15aR,16R)-14-(6-amino-9H-purin-9-yl)decahydro-15-hydroxy-2-mercapto-16-methoxy-2,10,10-trioxido-5,8-methano-11H-cyclopenta[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-[[(1,1-dimethylethyl)dimethylsilyl]oxy]decahydro-16-methoxy-10,10-dioxido-2-sulfido-5,8-methano-11H-cyclopenta[m]-1,3,6,9,10,11,2-tetraoxathiaazaphosphacyclotetradecin-14-y..