(2R,3R,4S,5R)-2-[6-[(1-Ethylpropyl)amino]-2-[[2-(1-piperidinyl)ethyl]amino]-9H-purin-9-yl]tetrahydro-5-(2-methyl-2H-tetrazol-5-yl)-3,4-furandiol

(2R,3S,4R,5R)-2-(2-Ethyl-2H-tetrazol-5-yl)tetrahydro-5-[6-[[(3-iodophenyl)methyl]amino]-2-[(3R)-3-pyrrolidinylamino]-9H-purin-9-yl]-3,4-furandiol

(2R,3R,4S,5R)-2-[2-[[2-(6-Amino-2-pyridinyl)ethyl]amino]-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(3,4-dimethoxyphenyl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(4-methoxyphenyl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

4-[2-[[6-Amino-9-[(2R,3R,4S,5R)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-dihydroxy-2-furanyl]-9H-purin-2-yl]amino]ethyl]benzenesulfonamide

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(4-hydroxyphenyl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[2-(3,4-dihydroxyphenyl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[(4-aminophenyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[(4-fluorophenyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-(cyclopentylamino)-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-Amino-2-[[(1S)-1-(hydroxymethyl)-2-phenylethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[6-[(3,3-Dimethylbutyl)amino]-2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

3,4-Furandiol, 2-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-5-[6-[[(1S)-1-(hydroxymethyl)-2-phenylethyl]amino]-2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-9H-purin-9-yl]-, 3,4-diacetate, (2R,3R,4R,5R)-

3,4-Furandiol, 2-[6-(cyclopentylamino)-2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-, 3,4-diacetate, (2R,3R,4R,5R)-

(2R,3R,4S,5R)-2-[6-[(1-Ethylpropyl)amino]-2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3S,4R,5R)-2-(2-Ethyl-2H-tetrazol-5-yl)tetrahydro-5-[2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-6-[(phenylmethyl)amino]-9H-purin-9-yl]-3,4-furandiol

(2R,3S,4R,5R)-2-(2-Ethyl-2H-tetrazol-5-yl)tetrahydro-5-[6-[[(3-iodophenyl)methyl]amino]-2-[[2-(1-methyl-1H-imidazol-4-yl)ethyl]amino]-9H-purin-9-yl]-3,4-furandiol

(2R,3R,4S,5R)-2-[6-[(2,2-Diphenylethyl)amino]-2-(3-pyrrolidinylamino)-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol

(2R,3R,4S,5R)-2-[2-[(trans-4-Aminocyclohexyl)amino]-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl]-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3,4-furandiol