2,4(1H,3H)-Pyrimidinedione,1-[4-C-ethynyl-3,5-O-(1-methylethylidene)-α-L-lyxofuranosyl]-5-methyl-

4-Amino-1-[2-deoxy-4-C-ethynyl-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-arabinof

2'-Deoxy-4'-C-ethynyl-2-fluoro-5'-adenylicacid

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

1-[5-O-Benzoyl-3-deoxy-4-C-ethynyl-2-S-(4-methylphenyl)-α-D-erythro-pentofuranosyl]--methyl-2,4(1H,3H)-pyrimidinedione

Adenosine,2'-deoxy-3',5'-bis-O-(phenylmethyl)-4'-C-[(triethylsilyl)ethynyl]-

Adenosine,N-benzoyl-2'-deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-4'-C-ethynyl-

1-[3,5-Di-O-acetyl-2-deoxy-4-C-[2-(triethylsilyl)ethynyl]-β-D-erythro-pentofuranosyl]-5-fluoro-4-(1H-1,2,4-triazol-1-yl)-2(1H)-pyrimidinone

N-(4'-C-Ethynyl-P-phenyl-2-thio-5'-uridylyl)-Lalanine-methylethylester

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

Adenosine,2-amino-2'-deoxy-3',5'-bis-O-(phenylmethyl)-4'-C-[(triethylsilyl)ethynyl]-

Adenosine,2-amino-3',5'-bis-O-(phenylmethyl)-4'-C-[(triethylsilyl)ethynyl]-

2'-Deoxy-2-fluoro-3',5'-bis-O-(phenylmethyl)-4'-C-[2-(triethylsilyl)ethynyl]adenosine

9-[3-O-Acetyl-2-deoxy-5-O-[(1,1-dimethylethyl)diphenylsilyl]-4-C-ethynyl-α-D-erythro-pentofuranosyl]-2-fluoro-9H-purin-6-amine

Adenosine,N-benzoyl-2-(benzoylamino)-2'-deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-4'-C-ethynyl-

Adenosine,2-amino-3',5'-bis-O-(phenylmethyl)-4'-C-[(triethylsilyl)ethynyl]-,2'-acetate

Uridine,2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-4'-C-ethynyl-2',2'-difluo

Adenosine,2'-deoxy-N-[(1,1-dimethylethoxy)carbonyl]-4'-C-ethynyl-2-fluoro-,3',5'-bis(4-methylbenzoate)

4-Amino-1-[(2S,5S)-5-ethynyltetrahydro-5-(hydroxymethyl)-2-furanyl]-2(1H)-pyrimidinone

4-Amino-1-(2-deoxy-4-C-ethynyl-β-L-threo-pentofuranosyl)-2(1H)-pyrimidinone