Adenosine, 5′→P:5′′′→P′′-diester with [P(R),P′′(R)]-(fluoromethylene)bis[thioisohypophosphoric acid] ([(HO)2P(S)OP(O)(OH)]2CFH)

5′-[(4-Carboxy-1-oxobutyl)amino]-5′-deoxyadenosine

Guanosine, N-(1-methyl-1-phosphonopropyl)-

1H-Purinium, 2-amino-7-[2-[(2-chloroethyl)methylamino]ethyl]-6,9-dihydro-6-oxo-9-β-D-ribofuranosyl-

Guanosine 5′-(trihydrogen diphosphate), 2′,3′-O-(3-carboxy-1-methylpropylidene)-7-methyl-, inner salt

β-D-Ribofuranuronic acid, 1-(6-amino-2-chloro-9H-purin-9-yl)-1-deoxy-, ethyl ester

Adenosine, 3′-amino-3′-deoxy-, 5′-[O-(4-nitrophenyl) hydrogen phosphorothioate]

Thymidine, 5′-deoxy-5′-(sulfoamino)-

5′-Adenylic acid, N-[2-[2-[2-[(iodoacetyl)amino]ethoxy]ethoxy]ethyl]-

3′-Uridylic acid, 2′-deoxy-5-fluoro-, mono(4-nitrophenyl) ester, 5′-(4-nitrophenyl hydrogen phosphate)

(2R,3R,3aS,9aR)-3-(Acetyloxy)-7-(dimethylamino)-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidine-2-methanol

(2R,3R,3aS,9aR)-2,3,3a,9a-Tetrahydro-2-(hydroxymethyl)-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl docosanoate

5′-Guanylic acid, 2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-

5′-Adenylic acid, 2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-

Adenosine, 5′-O-[bis(2,2,2-trichloroethoxy)phosphinyl]-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-(2,2,2-trichloroethyladenylyl-(2′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-(2,2,2-trichloroethyl)adenylyl-(2′→5′)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl])-

5′-Cytidylic acid, 2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-, bis(2,2,2-trichloroethyl) ester

5′-Guanylic acid, 2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-, bis(2,2,2-trichloroethyl) ester

5′-Adenylic acid, 2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-, bis(2,2,2-trichloroethyl) ester

3′-Thymidylic acid, 5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-[2-(phenylthio)ethyl]thymidylyl-(3′→5′)-, 2-cyanoethyl 2-(phenylthio)ethyl ester

3′-Thymidylic acid, 2-cyanoethyl 2-(phenylthio)ethyl ester