4-[2-[4-Amino-7-(2-deoxy-β-D-erythro-pentofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-6-yl]ethynyl]-L-phenylalanine

2'-Deoxy-2',2'-difluoro-5-iodocytidine

6-S-[2-(4-Chlorophenyl)-2-oxoethyl]-6-thioguanosine

2',3'-Dideoxy-5-(2-phenylethynyl)uridine

5-Chloro-2',3'-dideoxy-4-thiouridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-5-[2-[1-(3,5-di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]ethynyl]uridine

Uridine, 2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-ethynyl-, 5'-acetate

2-(Cyclopentyloxy)-4'-C-(hydroxymethyl)-2',3'-O-methyleneadenosine

Uridine, 5-[2-[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]ethynyl]-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-deoxy-, 5'-acetate

2',3'-Dideoxy-3'-fluoro-5-[2-(4-propylphenyl)ethynyl]uridine

N-Benzoyl-8-(2-[2,2'-bipyridin]-5-ylethynyl)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyadenosine

8-(2-[2,2'-Bipyridin]-5-ylethynyl)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyadenosine

8-(2-[2,2'-Bipyridin]-6-ylethynyl)-2'-deoxyadenosine

8-(2-[2,2'-Bipyridin]-5-ylethynyl)-2'-deoxyadenosine

1H-Benzimidazole, 5,6-dichloro-1-[2,3-O-(methoxymethylene)-β-D-ribofuranosyl]-, (S)-

1H-Benzimidazole, 5,6-dichloro-1-[2,3-O-(methoxymethylene)-β-D-ribofuranosyl]-, (R)-

1H-Benzimidazole, 5,6-dichloro-1-[3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-ribofuranosyl]-

5,6-Dichloro-1-[5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-β-D-ribofuranosyl]-1H-benzimidazole

5,6-Dichloro-1-[3-O-[(2-chlorophenoxy)hydroxyphosphinyl]-5-O-[(4-methoxyphenyl)diphenylmethyl]-2-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-β-D-ribofuranosyl]-1H-benzimidazole

5,6-Dichloro-1-[2-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-β-D-ribofuranosyl]-1H-benzimidazole