Guanosine, 3′-amino-2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)-

3′-Azido-2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2-methyl-1-oxopropyl)guanosine

N-[9-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-threo-pentofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

N-[9-[3-O-Benzoyl-2-deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-threo-pentofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methylpropanamide

Cytidine, N-benzoyl-2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-3′-[(triphenylmethyl)amino]-

3′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-[(triphenylmethyl)amino]thymidine

Uridine, 2′,3′-dideoxy-3′-[(triphenylmethyl)amino]-

Cytidine, N-benzoyl-2′,3′-dideoxy-3′-[(triphenylmethyl)amino]-

Cytidine, 2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-[(triphenylmethyl)amino]-

1-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(triphenylmethyl)amino]-β-D-erythro-pentofuranosyl]-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

Uridine, 2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-[(triphenylmethyl)amino]-

Uridine, 3′-amino-2′,3′-dideoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-

Thymidine, 3′-deoxy-3′-[(triphenylmethyl)amino]-, 5′-(4-methoxybenzoate)

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-5-methylcytidylylmethylene(methylimino)-(3′→5′)-N-benzoyl-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-5-methylcytidylylmethylene(methylimino)-(3′→5′)-N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-N-[1-(dimethylamino)ethylidene]adenylylmethylene(methylimino)-(3′→5′)-N-benzoyl-2′-deoxy-5-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-N-[1-(dimethylamino)ethylidene]adenylylmethylene(methylimino)-(3′→5′)-N-benzoyl-2′-deoxy-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-N-[1-(dimethylamino)ethylidene]adenylylmethylene(methylimino)-(3′→5′)-2′-deoxy-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-N-[1-(dimethylamino)ethylidene]adenylylmethylene(methylimino)-(3′→5′)-2′-deoxy-N-[1-(dimethylamino)ethylidene]-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-de(phosphinicooxy)-5-methylcytidylylmethylene(methylimino)-(3′→5′)-2′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-