Guanosine,2'-deoxy-4'-C-ethenyl-7-fluoro-5'-O-(hydroxymercaptophosphinyl)-P-thio-7-deazaadenylyl-(3'→5')-3'-deoxy-3'-flu

4'-C-Ethynyl-2-thiouridine

2',3'-O-Cyclopentylidene-4'-C-ethynylcytidine

7-(2-Deoxy-4-C-ethynyl-β-D-erythro-pentofuranosyl)-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-amine

1-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-4-C-ethynyl-α-L-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-4-C-[(acetyloxy)methyl]-5,6-dideoxy-α-L-xylo-hex-5-ynofuranosyl]-2,4(1H,3H)-pyrimidinedione

4'-C-Ethynyl-3',5'-bis-O-(phenylmethyl)-2-thiouridine

2'-Deoxy-4'-C-ethynyl-3'-O-[(4-methoxyphenyl)methyl]adenosine

Uridine,5-fluoro-4'-C-[(triethylsilyl)ethynyl]-

1-[4-C-[(Benzoyloxy)methyl]-2,5,6-trideoxy-α-L-erythro-hex-5-ynofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2'-Deoxy-4'-C-ethynyl-2',2'-difluoro-5'-cytidylicacid

Uridine,4'-C-ethynyl-3',5'-bis-O-(phenylmethyl)-2-thio-,2'-acetate

1-[5,6-Dideoxy-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-α-L-xylo-hex-5-ynofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine,2'-bromo-2'-deoxy-4'-C-[(triethylsilyl)ethynyl]-,3',5'-diacetate

Uridine,4'-C-ethynyl-5-methyl-3',5'-bis-O-(phenylmethyl)-,2'-acetate

Uridine,2'-deoxy-5-fluoro-4'-C-[(triethylsilyl)ethynyl]-,3',5'-diacetate

2'-Deoxy-4'-C-ethynyl-2',2'-difluorocytidine'-(tetrahydrogentriphosphate)

1-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-5-O-[(1,1-dimethylethyl)diphenylsilyl]-4-C-ethynyl-2-fluoro-β-D-arabinofuranosyl

Uridine,5-methyl-3',5'-bis-O-(phenylmethyl)-4'-C-[(triethylsilyl)ethynyl]-

2'-Deoxy-N-[(1,1-dimethylethoxy)carbonyl]-4'-C-ethynyl-2-fluoroadenosine