[P(S)]-3′-Amino-N-benzoyl-P(O)-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-thioadenylyl-(3′→5′)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

[P(R)]-3′-Amino-N-benzoyl-P(O)-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-thioadenylyl-(3′→5′)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

Guanosine, 3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]-, 5′-[O-(2-cyanoethyl) phosphonothioate]

6H-Purin-6-one, 2-amino-9-[(2R,3R,3aR,7aS,9R,10R,10aR,14aS)-9-(6-amino-9H-purin-9-yl)-3,10-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]dodecahydro-5,12-dihydroxy-5,12-dioxido-2H,7H-difuro[3,2-d:3′,2′-j][1,7,3,9,2,8]dioxadiazadiphosphacyclododecin-2-yl]-1,9-dihydro-

3′-Amino-N-benzoyl-5′-O-[(2-cyanoethoxy)phosphinyl]-P-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

3′-Amino-N-benzoyl-5′-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-P-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

Guanosine, 3′-amino-5′-O-[(2-cyanoethoxy)hydroxyphosphinyl]-P-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-3′-amino-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-, cyclic nucleotide

3′-Amino-N-benzoyl-5′-O-[(2-cyanoethoxy)phosphinyl]-P-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-3′-amino-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)guanosine

3′-Amino-N-benzoyl-P-(2-cyanoethyl)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]adenylyl-(3′→5′)-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

Guanosine, 3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]-, 5′-(2-cyanoethyl phosphonate)

Guanosine, 3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]-, 5′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

3′-Deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(triphenylmethyl)amino]guanosine

2-Amino-9-[(2R,3R,3aS,7aS,9R,10R,10aS,14aS)-9-(6-amino-9H-purin-9-yl)dodecahydro-3,5,10,12-tetrahydroxy-5,12-dioxido-2H,7H-difuro[3,2-d:3′,2′-j][1,7,3,9,2,8]dioxadiazadiphosphacyclododecin-2-yl]-1,9-dihydro-6H-purin-6-one

5'-Amino-N-benzoyl-2',5'-dideoxy-2'-fluoroadenosine

5'-Azido-N-benzoyl-2',5'-dideoxy-2'-fluoroadenosine

N-Benzoyl-2',5'-dideoxy-2'-fluoro-5'-iodoadenosine

N-Benzoyl-2′,5′-dideoxy-2′-fluoro-5′-[(triphenylmethyl)amino]adenosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-3′-[(phenylmethylene)amino]guanosine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-[(phenylmethylene)amino]guanosine

[N(E)]-5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-N-[(dimethylamino)methylene]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-[(phenylmethylene)amino]guanosine