5-Amino-3-(2-deoxy-β-D-erythro-pentofuranosyl)thiazolo[4,5-d]pyrimidin-2(3H)-one

5-Amino-3-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl]thiazolo[4,5-d]pyrimidin-2(3H)-one

N′-[7-Chloro-3-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl]-2,3-dihydro-2-oxothiazolo[4,5-d]pyrimidin-5-yl]-N,N-dimethylmethanimidamide

5-Amino-3-(2-C-methyl-β-D-ribofuranosyl)thiazolo[4,5-d]pyrimidin-2(3H)-one

5-Amino-3-(2,3,5-tri-O-benzoyl-2-C-methyl-β-D-ribofuranosyl)thiazolo[4,5-d]pyrimidin-2(3H)-one

Guanosine 5′-(trihydrogen diphosphate), P′-anhydride with 1-(phosphonooxy)-1H-imidazole, cyclic 2′,3′-carbonate

N′-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-6-(methylsulfonyl)-9H-purin-2-yl]-N,N-dimethylmethanimidamide

N′-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-6-(methylsulfonyl)-9H-purin-2-yl]-N,N-dimethylmethanimidamide

N′-[9-(2-Deoxy-β-D-erythro-pentofuranosyl)-6-(methylsulfonyl)-9H-purin-2-yl]-N,N-dimethylmethanimidamide

N′-[9-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-6-(methylsulfonyl)-9H-purin-2-yl]-N,N-dimethylmethanimidamide

9-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-6-(methylsulfonyl)-9H-purin-2-amine

Guanosine, 2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-6-S-methyl-6-thio-

5-Chloro-3-β-D-ribofuranosyl-3H-imidazo[4,5-b]pyridin-7-ol

3H-Imidazo[4,5-b]pyridine, 5-chloro-7-[(4-methoxyphenyl)methoxy]-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-

5-Chloro-7-[(4-methoxyphenyl)methoxy]-3-β-D-ribofuranosyl-3H-imidazo[4,5-b]pyridine

5-Chloro-7-(phenylmethoxy)-3-β-D-ribofuranosyl-3H-imidazo[4,5-b]pyridine

5-Chloro-3-β-D-ribofuranosyl-3H-imidazo[4,5-b]pyridin-7-amine

5,7-Dichloro-1-β-D-ribofuranosyl-1H-imidazo[4,5-b]pyridine

5,7-Dichloro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazo[4,5-b]pyridine

1H-Imidazo[4,5-b]pyridine, 7-chloro-1-β-D-ribofuranosyl-, 4-oxide