2-Chloro-5′-S-(2-ethoxy-2-oxo-1-phosphonoethyl)-5′-thioadenosine

2-Chloro-5′-O-(1,1-dicarboxy-2-cyclopropylethyl)adenosine

2-Chloro-N-cyclopentyl-5′-O-[1,1-dicarboxy-2-(4-fluorophenyl)ethyl]adenosine

2-Chloro-5′-O-[1,1-dicarboxy-2-(3,5-difluorophenyl)ethyl]adenosine

2-Chloro-5′-O-[1,1-dicarboxy-2-(2-thiazolyl)ethyl]adenosine

2-Chloro-5′-O-[1,1-dicarboxy-2-(2-pyridinyl)ethyl]adenosine

5-Chloro-3-[5-O-[(1S)-2-ethoxy-2-oxo-1-phosphonoethyl]-β-D-ribofuranosyl]-3H-imidazo[4,5-b]pyridine

5-Chloro-3-[5-O-[(1R)-2-ethoxy-2-oxo-1-phosphonoethyl]-β-D-ribofuranosyl]-3H-imidazo[4,5-b]pyridine

2-Chloro-5′-O-[1,1-dicarboxy-2-[2-(methylsulfonyl)phenyl]ethyl]adenosine

2-Chloro-5′-O-[1,1-dicarboxy-2-(2-cyanophenyl)ethyl]adenosine

2-Chloro-5′-O-[1,1-dicarboxy-2-(2,6-difluorophenyl)ethyl]adenosine

2-Chloro-5′-O-(dicarboxymethyl)-N-[(3S)-tetrahydro-3-furanyl]adenosine

2-Chloro-5′-O-[(1R)-2-(diethylamino)-2-oxo-1-phosphonoethyl]adenosine

2-Chloro-5′-O-[(1S)-2-(diethylamino)-2-oxo-1-phosphonoethyl]adenosine

5′-O-[(1S)-2-Ethoxy-1-(ethoxyhydroxyphosphinyl)-1-methyl-2-oxoethyl]-2-chloro-N-ethyladenosine

5′-O-[(1R)-2-Ethoxy-1-(ethoxyhydroxyphosphinyl)-1-methyl-2-oxoethyl]-2-chloro-N-ethyladenosine

5'-O-[(1S)-1-(Carboxymethyl)-2-ethoxy-2-oxo-1-phosphonoethyl]-2-fluoroadenosine

5'-O-[(1R)-1-(Carboxymethyl)-2-ethoxy-2-oxo-1-phosphonoethyl]-2-fluoroadenosine

2-Chloro-5′-O-(dicarboxymethyl)-N-[(3R)-tetrahydro-3-furanyl]adenosine

1-[9-[5-O-(Carboxyphosphonomethyl)-β-D-ribofuranosyl]-9H-purin-6-yl]-4-piperidinol