Guanosine, N-benzoyl-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(2-cyanoethoxy)mercaptophosphinyl]-P-thio-1′a-carbaadenylyl-(3′→5′)-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, cyclic nucleotide

Adenosine, 5′-azido-P-(2-cyanoethyl)-3′,5′-dideoxy-3′-fluoro-N-(2-methyl-1-oxopropyl)guanylyl-(2′→5′)-N-benzoyl-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 3′-(dimethyl phosphite)

Adenosine, N-benzoyl-5′-chloro-5′-deoxy-2′-O-2-propen-1-yl-, 3′-(dimethyl phosphite)

Guanosine, [P(S)]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(S)-hydroxymercaptophosphinyl]-P-thio-1′a-carbaadenylyl-(3′→5′)-3′-O-methyl-, cyclic nucleotide

Guanosine, [P(S)]-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(R)-hydroxymercaptophosphinyl]-P-thio-1′a-carbaadenylyl-(3′→5′)-3′-O-methyl-, cyclic nucleotide

Guanosine, [P(S)]-N-benzoyl-P(O)-(2-cyanoethyl)-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(R)-hydroxymercaptophosphinyl]-P-thio-1′a-carbaadenylyl-(3′→5′)-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, cyclic nucleotide

Guanosine, [P(R)]-N-benzoyl-P(O)-(2-cyanoethyl)-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(S)-hydroxymercaptophosphinyl]-P-thio-1′a-carbaadenylyl-(3′→5′)-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, cyclic nucleotide

Guanosine, N-benzoyl-P-(2-cyanoethyl)-2′-deoxy-2′-fluoroadenylyl-(3′→5′)-2′-deoxy-2′-[(hydroxymethoxyphosphinyl)amino]-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, cyclic nucleotide

N-Benzoyl-P-(2-cyanoethyl)-2′-fluoroadenylyl-(3′→5′)-2′-azido-2′-deoxy-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-fluoroadenylyl-(3′→5′)-2′-azido-2′-deoxy-3′-O-methyl-N-(2-methyl-1-oxopropyl)guanosine

Guanosine, 2′-azido-2′-deoxy-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, 6-(N,N-diphenylcarbamate)

Guanosine, 2′-azido-2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, 6-(N,N-diphenylcarbamate)

9-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-3-O-methyl-2-O-[(trifluoromethyl)sulfonyl]-β-D-arabinofuranosyl]-2-[(2-methyl-1-oxopropyl)amino]-9H-purin-6-yl N,N-diphenylcarbamate

9-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-3-O-methyl-β-D-arabinofuranosyl]-2-[(2-methyl-1-oxopropyl)amino]-9H-purin-6-yl N,N-diphenylcarbamate

N-[9-[5-O-[(1,1-Dimethylethyl)dimethylsilyl]-3-O-methyl-β-D-arabinofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-O-methyl-N-(2-methyl-1-oxopropyl)-2′-oxoguanosine

Guanosine, N-benzoyl-2′,5′,6′-trideoxy-2′-fluoro-6′-phosphono-P-thio-β-D-ribo-hexofuranoadenylyl-(3′→5′)-3′-O-methyl-, cyclic nucleotide

Guanosine, N-benzoyl-P(O)-(2-cyanoethyl)-2′,5′,6′-trideoxy-2′-fluoro-6′-(hydroxymethoxyphosphinyl)-P-thio-β-D-ribo-hexofuranoadenylyl-(3′→5′)-3′-O-methyl-N-(2-methyl-1-oxopropyl)-, cyclic nucleotide