Thymidine, 5′-O-[[1-[5-[[[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]amino]methyl]-2-nitrophenyl]ethoxy]hydroxyphosphinyl]thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-

Thymidine, 5′-O-[[1-[5-(aminomethyl)-2-nitrophenyl]ethoxy]hydroxyphosphinyl]thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-thymidylyl-(3′→5′)-

Guanosine, 5′-O-[hydroxy(2-methyl-1H-imidazol-1-yl)phosphinyl]guanylyl-(3′→5′)-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[[(2S)-5-(1,1-dimethylethoxy)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-1,5-dioxopentyl]amino]hexyl]-5-methyl-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(4S)-4-[[4-[[[1,4-dihydro-2-[(2-methyl-1-oxopropyl)amino]-4-oxo-6-pteridinyl]methyl](trifluoroacetyl)amino]benzoyl]amino]-5-methoxy-1,5-dioxopentyl]amino]pentyl]-, 3′-(hydrogen butanedioate)

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(4S)-4-[[4-[[[1,4-dihydro-2-[(2-methyl-1-oxopropyl)amino]-4-oxo-6-pteridinyl]methyl](trifluoroacetyl)amino]benzoyl]amino]-5-methoxy-1,5-dioxopentyl]amino]pentyl]-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(4S)-4-[[4-[[[1,4-dihydro-2-[(2-methyl-1-oxopropyl)amino]-4-oxo-6-pteridinyl]methyl](trifluoroacetyl)amino]benzoyl]amino]-5-methoxy-1,5-dioxopentyl]amino]pentyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, 2′-O-[5-[[(4S)-4-amino-5-methoxy-1,5-dioxopentyl]amino]pentyl]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-[5-[[(4S)-4-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-5-methoxy-1,5-dioxopentyl]amino]pentyl]-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, N,N-dibenzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]pentyl]-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(2-cyanoethoxy)carbonyl]amino]pentyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(2-cyanoethoxy)carbonyl]amino]pentyl]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Adenosine, 2′-O-(5-aminopentyl)-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[5-[[(2-cyanoethoxy)carbonyl]amino]pentyl]-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[[(4S)-4-[[4-[[[1,4-dihydro-2-[(2-methyl-1-oxopropyl)amino]-4-oxo-6-pteridinyl]methyl](trifluoroacetyl)amino]benzoyl]amino]-1,5-dioxo-5-(2-propenyloxy)pentyl]amino]hexyl]-5-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]