9-[5,6-Dideoxy-4-C-(hydroxymethyl)-α-L-xylo-hex-5-ynofuranosyl]-9H-purin-6-amine

N-[1-[(2R,5R)-5-Ethynyltetrahydro-5-(hydroxymethyl)-2-furanyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]benzamide

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

4-Amino-1-(2-deoxy-4-C-ethynyl-2-fluoro-β-Darabinofuranosyl)-5-hydroxy-2(1H)-pyrimidinone

2-Amino-9-(2-deoxy-4-C-ethynyl-β-L-erythro-pentofuranosyl)-1,9-dihydro-6H-purin-6-one

(2R,5R)-5-(6-Amino-2-chloro-9H-purin-9-yl)-2-ethynyltetrahydro-2-furanmethanol

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

9-(2-Deoxy-4-C-ethynyl-β-L-erythro-pentofuranosyl)-9H-purine-2,6-diamine

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

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

9-(2-Deoxy-4-C-ethynyl-2-fluoro-β-D-arabinofuranosyl)-1,9-dihydro-6H-purin-6-one

(2R,5R)-5-(6-Amino-2-fluoro-9H-purin-9-yl)tetrahydro-2-(hydroxymethyl)-2-furancarbonitrile

(2R,5R)-5-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-2-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]tetrahydro-2-furancarbonitrile

(2S,5R)-2-[(Acetyloxy)methyl]-5-(1,6-dihydro-6-oxo-7H-purin-7-yl)tetrahydro-2-furancarbonitrile

((2S,5R)-2-cyano-5-(2,6-diamino-7H-purin-7-yl)tetrahydrofuran-2-yl)methyl acetate

(2S,5R)-2-[(Acetyloxy)methyl]-5-(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)tetrahydro-2-furancarbonitrile

(2S,5R)-2-[(Acetyloxy)methyl]-5-(6-amino-9H-purin-9-yl)tetrahydro-2-furancarbonitrile

(2S,5R)-5-(1,6-Dihydro-6-oxo-7H-purin-7-yl)tetrahydro-2-(hydroxymethyl)-2-furancarbonitrile

(2S,5R)-5-(2,6-Diamino-7H-purin-7-yl)tetrahydro-2-(hydroxymethyl)-2-furancarbonitrile

1-(2-Amino-5-fluoro-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-1,2-dideoxy-2-fluoro-4-C-(hydroxymethyl)-α-L-xylofuranurononitrile