Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-5-[2-[4-[2-[2,6-bis[(2-phenoxyacetyl)amino]-9-(3,6,9,12-tetraoxatridec-1-yl)-9H-purin-8-yl]ethynyl]phenyl]ethynyl]-2′-deoxy-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-[4-[2-[2-[[(dimethylamino)methylene]amino]-6,9-dihydro-6-oxo-9-(3,6,9,12-tetraoxatridec-1-yl)-1H-purin-8-yl]ethynyl]phenyl]ethynyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-[4-[2-[2-[[(dimethylamino)methylene]amino]-6,9-dihydro-6-oxo-9-(3,6,9,12-tetraoxatridec-1-yl)-1H-purin-8-yl]ethynyl]phenyl]ethynyl]cytidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-(4-iodophenyl)ethynyl]uridine

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-(4-iodophenyl)ethynyl]cytidine

N-Acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[2-(4-iodophenyl)ethynyl]cytidine

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[2-(4-iodophenyl)ethynyl]cytidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[2-(4-iodophenyl)ethynyl]cytidine

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-(4-iodophenyl)ethynyl]cytidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[2-(4-iodophenyl)ethynyl]cytidine

2′-Deoxy-5-[2-(4-iodophenyl)ethynyl]cytidine

2-Amino-8-[2-[tris(1-methylethyl)silyl]ethynyl]adenosine

Thymidylyl-(3′→5′)-2′-deoxy-5-[2-[4-[2-[2-amino-6,9-dihydro-6-oxo-9-(3,6,9,12-tetraoxatridec-1-yl)-1H-purin-8-yl]ethynyl]phenyl]ethynyl]cytidylyl-(3′→5′)-2′-deoxy-5-[2-[4-[2-[2-amino-6,9-dihydro-6-oxo-9-(3,6,9,12-tetraoxatridec-1-yl)-1H-purin-8-yl]ethynyl]phenyl]ethynyl]cytidylyl-(3′→5′)-thymidine

Thymidylyl-(3′→5′)-2′-deoxy-5-[2-[4-[2-[2,6-diamino-9-(3,6,9,12-tetraoxatridec-1-yl)-9H-purin-8-yl]ethynyl]phenyl]ethynyl]uridylyl-(3′→5′)-2′-deoxy-5-[2-[4-[2-[2,6-diamino-9-(3,6,9,12-tetraoxatridec-1-yl)-9H-purin-8-yl]ethynyl]phenyl]ethynyl]uridylyl-(3′→5′)-thymidine

2′-Deoxy-5-[2-[4-[2-[2-amino-6,9-dihydro-6-oxo-9-(3,6,9,12-tetraoxatridec-1-yl)-1H-purin-8-yl]ethynyl]phenyl]ethynyl]-5′-O-(1,7,11-trihydroxy-1,7-dioxido-2,6,8-trioxa-1,7-diphosphaundec-1-yl)cytidylyl-(3′→5′)-thymidine

2′-Deoxy-5-[2-[4-[2-[2,6-diamino-9-(3,6,9,12-tetraoxatridec-1-yl)-9H-purin-8-yl]ethynyl]phenyl]ethynyl]-5′-O-(1,7,11-trihydroxy-1,7-dioxido-2,6,8-trioxa-1,7-diphosphaundec-1-yl)uridylyl-(3′→5′)-thymidine

7H-Pyrrolo[2,3-d]pyrimidine, 4-(4-methylphenyl)-7-β-D-ribofuranosyl-

7H-Pyrrolo[2,3-d]pyrimidine, 4-(4-ethylphenyl)-7-β-D-ribofuranosyl-