Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxy-5-[3-[[[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]acetyl]amino]-1-propynyl]uridylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxy-5-[3-[[[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]acetyl]amino]-1-propynyl]uridylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-, 3′-(4-oxopentanoate)

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-, 5′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite] 3′-(4-oxopentanoate)

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[3-[[[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]acetyl]amino]-1-propynyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-[3-[[[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]acetyl]amino]-1-propynyl]-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxy-5-[3-[[1-oxo-6-[(trifluoroacetyl)amino]hexyl]amino]-1-propynyl]uridylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxy-5-[3-[[1-oxo-6-[(trifluoroacetyl)amino]hexyl]amino]-1-propynyl]uridylyl-(3′→5′)-N-benzoyl-2′-deoxy-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(2-cyanoethyl)-2′-deoxy-5-[3-[[1-oxo-6-[(trifluoroacetyl)amino]hexyl]amino]-1-propynyl]uridylyl-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-(4-oxopentanoate)

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

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

2′-Deoxyadenylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidine

Cytidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxy-P-methyl-2′-O-methyl-P-selenouridylyl-(3′→5′)-N-benzoyl-2′-O-methyl-

Thymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-N-(2-methyl-1-oxopropyl)-P-selenoguanylyl-(3′→5′)-

Adenosine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-N-(2-methyl-1-oxopropyl)-P-selenoguanylyl-(3′→5′)-N-benzoyl-2′-deoxy-

Cytidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-deoxy-P-methyl-P-selenothymidylyl-(3′→5′)-N-benzoyl-2′-deoxy-

Guanosine, [P(S)]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-P-thioadenylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Cytidine, [P(S)]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-P-thioadenylyl-(3′→5′)-N-benzoyl-2′-deoxy-

Thymidine, [P(S)]-N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-P-thioadenylyl-(3′→5′)-

Guanosine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-N-(2-methyl-1-oxopropyl)-P-thioguanylyl-(3′→5′)-2′-deoxy-N-(2-methyl-1-oxopropyl)-

Thymidine, [P(S)]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P,2′-dideoxy-P-methyl-N-(2-methyl-1-oxopropyl)-P-thioguanylyl-(3′→5′)-