5′-Adenylic acid, P-anhydride with [phosphinicobis(chloromethylene)]bis[phosphonic acid]

5′-Adenylic acid, 5′→P:5′′′→P′-dianhydride with [phosphinicobis(chloromethylene)]bis[phosphonic acid]

Adenosine, 2′-deoxy-, 5′-(dihydrogen phosphorothioate), 5′→P:5′′′→P′-dianhydride with (chloromethylene)bis[phosphonic acid]

5′-Adenylic acid, 2′-deoxy-, 5′→P:5′′′→P′-dianhydride with (chloromethylene)bis[phosphonic acid]

Adenosine, 5′-(dihydrogen phosphorothioate), 5′→P:5′′′→P′-dianhydride with (chloromethylene)bis[phosphonic acid]

Guanosine, N-[[bis(2-methylpropyl)amino]methylene]-, 3′-acetate

Guanosine, N-[[bis(2-methylpropyl)amino]methylene]-, 5′-acetate

Guanosine, N-(2-methyl-1-oxopropyl)-, 5′-acetate

Cytidine, N-benzoyl-, 5′-acetate

Adenosine, N-benzoyl-, 5′-acetate

Guanosine, N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-, 5′-acetate

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 5′-acetate

Adenosine, N-benzoyl-2′-deoxy-, 5′-acetate

Guanosine, N-[[bis(2-methylpropyl)amino]methylene]-

Guanosine, N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-

Thymidine, P(O)-[1,2-O-cyclopentylidene-3,5-dideoxy-5-[(1-methylethyl)amino]-α-D-xylofuranos-3-yl]-P-deoxo-5′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, 5′-O-[(1,1-dimethylethyl)dimethylsilyl]-P(O)-[(1S)-2-(1H-indol-2-yl)-1-methylethyl]-P-thiothymidylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-