N-(6-Aminohexyl)-2′-deoxy-5′-O-phosphonoguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

5-[3-[(6-Aminohexyl)amino]-3-oxo-1-propen-1-yl]-2′-deoxy-5′-O-phosphonocytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

2′-Deoxy-5′-O-phosphonocytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-8-[(6-aminohexyl)amino]-2′-deoxyadenosine

2′-Deoxy-5′-O-phosphonocytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-8-[(6-aminohexyl)amino]-2′-deoxyadenylyl-(3′→5′)-thymidine

2′-Deoxy-5′-O-phosphonocytidylyl-(3′→5′)-thymidylyl-(3′→5′)-8-[(6-aminohexyl)amino]-2′-deoxyadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

2′-Deoxy-5′-O-phosphonocytidylyl-(3′→5′)-8-[(6-aminohexyl)amino]-2′-deoxyadenylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

8-[(6-Aminohexyl)amino]-2′-deoxy-5′-O-phosphonoadenylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

N-[9-[(1′R,4′R,6′R,7′S)-7′-(Phenylmethoxy)-4′-[(phenylmethoxy)methyl]spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-9H-purin-6-yl]benzamide

(1′R,4′R,6′R,7′S)-4′-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6′-[1,6-dihydro-2-[(2-methyl-1-oxopropyl)amino]-6-oxo-9H-purin-9-yl]spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]hept]-7′-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

N-[9-[(1′R,4′R,6′R,7′S)-4′-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7′-hydroxyspiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[6,9-Dihydro-9-[(1′R,4′R,6′R,7′S)-7′-hydroxy-4′-(hydroxymethyl)spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[6,9-Dihydro-6-oxo-9-[(1′R,4′R,6′R,7′S)-7′-(phenylmethoxy)-4′-[(phenylmethoxy)methyl]spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-1H-purin-2-yl]-2-methylpropanamide

2′-Deoxy-4′-C-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-N-(2-methyl-1-oxopropyl)-2′-oxo-3′,5′-bis-O-(phenylmethyl)guanosine

4′-C-[1-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-N-(2-methyl-1-oxopropyl)-3′,5′-bis-O-(phenylmethyl)guanosine

Guanosine, 4′-C-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]cyclopropyl]-N-(2-methyl-1-oxopropyl)-3′,5′-bis-O-(phenylmethyl)-, 2′-acetate

(1′R,4′R,6′R,7′S)-6′-[6-(Benzoylamino)-9H-purin-9-yl]-4′-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]hept]-7′-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

N-[9-[(1′R,4′R,6′R,7′S)-4′-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7′-hydroxyspiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-9H-purin-6-yl]benzamide

N-[9-[(1′R,4′R,6′R,7′S)-7′-Hydroxy-4′-(hydroxymethyl)spiro[cyclopropane-1,3′-[2,5]dioxabicyclo[2.2.1]heptan]-6′-yl]-9H-purin-6-yl]benzamide