1H-Benzimidazole, 1-[2-O-(2-azidoethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-4,6-difluoro-

1H-Benzimidazole, 4,6-difluoro-1-[2-O-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-

5,6-Dichloro-1-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-1H-benzimidazole

Cytidine, 2'-deoxy-5-ethynyl-, 3',5'-bis(4-methylbenzoate)

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-α-D-erythro-pentofuranosyl]-5-ethynyl-2,4(1H,3H)-pyrimidinedione

Uridine, 2'-deoxy-5-ethynyl-, 3',5'-bis(4-methylbenzoate)

Uridine, 5-ethynyl-, 2',3',5'-tribenzoate

4-Amino-1-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-α-D-erythro-pentofuranosyl]-5-ethynyl-2(1H)-pyrimidinone

Adenosine, 2'-deoxy-N-methyl-2-(phenylethynyl)-

Adenosine, 2'-deoxy-2-ethynyl-N-methyl-

Adenosine, 2'-deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-methyl-2-(phenylethynyl)-

Adenosine, 2'-deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-methyl-2-[(trimethylsilyl)ethynyl]-

Adenosine 5'-(trihydrogen pyrophosphate), 5'→5'-ester with 5-bromouridine

4-Amino-1-(2-deoxy-α-D-erythro-pentofuranosyl)-5-ethynyl-2(1H)-pyrimidinone

5-Fluoro-3-methylcytidine

3'-Adenylic acid, 2'-deoxy-2-ethynyl-N-methyl-, bis(phenylmethyl) ester, 5'-[bis(phenylmethyl) phosphate]

3'-Adenylic acid, 2'-deoxy-2-ethynyl-N-methyl-, 5'-(dihydrogen phosphate)

3'-Adenylic acid, 2'-deoxy-2-ethynyl-N-methyl-, bis(1,1-dimethylethyl) ester, 5'-[bis(1,1-dimethylethyl) phosphate]

3'-Adenylic acid, 2'-deoxy-N-methyl-2-(phenylethynyl)-, bis(phenylmethyl) ester, 5'-[bis(phenylmethyl) phosphate]

Benzimidazole, 1-D-ribofuranosyl-2-(4-thiazolyl)-, 2',3',5'-triacetate