1,1-Dimethylethyl 3-[2-deoxy-3-O-[(4-nitrophenyl)sulfonyl]-5-O-(triphenylmethyl)-β-D-threo-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinecarboxylate

1,1-Dimethylethyl 3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(4-methylphenyl)sulfonyl]-β-D-threo-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinecarboxylate

1,1-Dimethylethyl 3-[2-deoxy-3-O-(methylsulfonyl)-5-O-(triphenylmethyl)-β-D-threo-pentofuranosyl]-3,6-dihydro-5-methyl-2,6-dioxo-1(2H)-pyrimidinecarboxylate

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-[(4-methylphenyl)sulfonyl]-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-3-O-[(4-methylphenyl)sulfonyl]-5-O-(triphenylmethyl)-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Adenosine, cyclic 3′,5′-[S-(4-bromo-2,3-dioxobutyl) (S)-phosphorothioate]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-O-[2-(4-cyanophenyl)ethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-8-[(4-methylphenyl)amino]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-(2-methyl-1-oxopropyl)-8-[(4-methylphenyl)amino]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Guanosine, 6-O-[2-(4-cyanophenyl)ethyl]-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-8-[(4-methylphenyl)amino]-

8-([1,1′-Biphenyl]-4-ylamino)-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)guanosine

Guanosine, 2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-(9H-fluoren-2-ylamino)-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)-

Guanosine, 8-[(4-cyanophenyl)amino]-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)-

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-[(4-methoxyphenyl)amino]-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)guanosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-[(4-methylphenyl)amino]-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)guanosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-8-(phenylamino)-6-O-(phenylmethyl)guanosine

Guanosine, 8-bromo-6-O-[2-(4-cyanophenyl)ethyl]-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-

8-Bromo-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-6-O-(phenylmethyl)guanosine

2,4(1H,3H)-Pyrimidinedione, 1-(3-bromo-1,3-dideoxy-β-D-fructofuranosyl)-5-(trimethylstannyl)-

2,4(1H,3H)-Pyrimidinedione, 1-(3-bromo-1,3-dideoxy-β-D-fructofuranosyl)-5-iodo-

2,4(1H,3H)-Pyrimidinedione, 1-(4,6-di-O-acetyl-3-bromo-1,3-dideoxy-β-D-fructofuranosyl)-5-iodo-