3-[5-O-[[[2-(3-Benzofuranyl)ethyl]amino]carbonyl]-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purin-5-amine

3-[5-O-[(Butylamino)carbonyl]-β-D-ribofuranosyl]-N-methyl-3H-imidazo[2,1-i]purin-5-amine

3-[5-O-[(Butylamino)carbonyl]-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purin-5-amine

3-[5-O-[(Ethylamino)carbonyl]-β-D-ribofuranosyl]-N-methyl-3H-imidazo[2,1-i]purin-5-amine

3-[5-O-[(Ethylamino)carbonyl]-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purin-5-amine

N-Methyl-3-[5-O-[(methylamino)carbonyl]-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purin-5-amine

Guanosine, 5′-(N,N-diethylcarbamate)

Guanosine, 5′-[N-(phenylmethyl)carbamate]

Guanosine, 5′-[N-[2-(1H-imidazol-5-yl)ethyl]carbamate]

Adenosine, thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

Adenosine, thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

Guanosine, thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxy-

Adenosine, 2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxy-

1-(2-Amino-1,6-dihydro-6-oxo-9H-purin-9-yl)-1-deoxy-2,3-O-(1-methylethylidene)-β-D-ribofuranuronic acid

Uridine 5′-(trihydrogen diphosphate), P′-[6-[[(1S)-2-[[(1R)-3-[[(6R)-6-[[(1,1-dimethylethoxy)carbonyl]amino]-7-methoxy-2-(methoxycarbonyl)-7-oxoheptyl]methoxyphosphinyl]-1-(methoxycarbonyl)propyl]amino]-1-methyl-2-oxoethyl]amino]-6-oxohexyl] ester

Uridine 5′-(trihydrogen diphosphate), P′-[6-[[(1S)-2-[[(1R)-3-[[(6R)-6-amino-2,6-dicarboxyhexyl]hydroxyphosphinyl]-1-carboxypropyl]amino]-1-methyl-2-oxoethyl]amino]-6-oxohexyl] ester