Propanamide, N-[7-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-4,7-dihydro-4-oxo-5-(1-propynyl)-1H-pyrrolo[2,3-d]pyrimidin-2-yl]-2-methyl-

Propanamide, N-[7-(2-deoxy-β-D-erythro-pentofuranosyl)-4,7-dihydro-4-oxo-5-(1-propynyl)-1H-pyrrolo[2,3-d]pyrimidin-2-yl]-2-methyl-

Acetamide, N-[7-(3,5-di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-4,7-dihydro-5-iodo-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-2-yl]-

N-[7-(3,5-Di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-4-methoxy-7H-pyrrolo[2,3-d]pyrimidin-2-yl]acetamide

(8S)-3-(2-Deoxy-β-D-erythro-pentofuranosyl)-4,6,7,8-tetrahydro-8-hydroxypyrimido[1,2-a]purin-10(3H)-one

(8R)-3-(2-Deoxy-β-D-erythro-pentofuranosyl)-4,6,7,8-tetrahydro-8-hydroxypyrimido[1,2-a]purin-10(3H)-one

D-erythro-α-L-manno-2-Nonulopyranosonic acid, 5-(acetylamino)-3,5-dideoxy-3-fluoro-, methyl ester, 4,7,8,9-tetraacetate 1-(hydrogen N-acetyl-2′,3′-di-O-acetyl-5′-cytidylate)

D-erythro-α-L-manno-2-Nonulopyranosonic acid, 5-(acetylamino)-3,5-dideoxy-3-fluoro-, methyl ester, 4,7,8,9-tetraacetate 1-(2-propenyl hydrogen phosphite), ester with N-acetylcytidine 2′,3′-diacetate

D-erythro-α-L-manno-2-Nonulopyranosonic acid, 5-(acetylamino)-3,5-dideoxy-3-fluoro-, 2-(hydrogen 5′-cytidylate)

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-2-[[3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-1-oxopropyl]amino]-β-D-arabinofuranosyl]-9H-purin-6-yl]benzamide

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-2-[[3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-1-oxopropyl]amino]-β-D-arabinofuranosyl]-9H-purin-6-yl]benzamide