Adenosine, N-1-naphthalenyl-2-phenyl-

6-Chloro-2-(2-furanyl)-9-β-D-ribofuranosyl-9H-purine

Inosine, 2-(2-furanyl)-

Adenosine, 2-(2-furanyl)-N-1-naphthalenyl-

3′-Guanylic acid, 7-methyl-, inner salt, 5′-(dihydrogen phosphate)

2′-Guanylic acid, 7-methyl-, inner salt, 5′-(dihydrogen phosphate)

Guanosine 3'-(tetrahydrogen triphosphate), 7-methyl-, inner salt, P''→5'-ester with 2'-O-methylguanosine, inner salt

4-(1,2,3,4-Tetrahydro-2,4-dioxo-1-β-D-ribofuranosyl-5-pyrimidinyl)benzoic acid

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1H-imidazo[4,5-c]quinoline

1-[2-Deoxy-3,5-bis-O-[tris(1-methylethyl)silyl]-β-D-erythro-pentofuranosyl]-1H-imidazo[4,5-c]quinoline

1-[2-Deoxy-3,5-bis-O-[tris(1-methylethyl)silyl]-β-D-erythro-pentofuranosyl]-4-iodo-1H-imidazo[4,5-c]quinoline

1-[2-Deoxy-3,5-bis-O-[tris(1-methylethyl)silyl]-β-D-erythro-pentofuranosyl]-1H-imidazo[4,5-c]quinolin-4-amine

N′-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4,5-dihydro-4-oxo-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl]-N,N-dibutylmethanimidamide

N′-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-4,5-dihydro-4-oxo-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl]-N,N-dibutylmethanimidamide

N,N-Dibutyl-N′-[1-(2-deoxy-β-D-erythro-pentofuranosyl)-4,5-dihydro-4-oxo-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl]methanimidamide

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4-[[(dibutylamino)methylene]amino]-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl diphenylcarbamate

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-4-[[(dibutylamino)methylene]amino]-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl N,N-diphenylcarbamate

Carbamic acid, diphenyl-, 1-(2-deoxy-β-D-erythro-pentofuranosyl)-4-[[(dibutylamino)methylene]amino]-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl ester

Carbamic acid, diphenyl-, 1-[2-deoxy-3,5-bis-O-[tris(1-methylethyl)silyl]-β-D-erythro-pentofuranosyl]-4-[[(dibutylamino)methylene]amino]-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidin-7-yl ester

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-6-(4-methoxybenzoyl)-1H-imidazo[4′,5′:4,5]pyrido[2,3-d]pyrimidine-4,7(5H,6H)-dione