Acetic acid (2R,3S,4S,5R)-5-(6-amino-purin-9-yl)-4-chloro-3-methylsulfanyl-tetrahydro-furan-2-ylmethyl ester

Acetic acid (2R,3S,4S,5R)-4-chloro-5-(6-dibenzoylamino-purin-9-yl)-3-o-tolylsulfanyl-tetrahydro-furan-2-ylmethyl ester

Acetic acid (2R,3S,4S,5R)-4-chloro-3-(2-chloro-phenylsulfanyl)-5-(6-dibenzoylamino-purin-9-yl)-tetrahydro-furan-2-ylmethyl ester

Acetic acid (2R,3S,4S,5R)-4-chloro-3-(4-chloro-phenylsulfanyl)-5-(6-dibenzoylamino-purin-9-yl)-tetrahydro-furan-2-ylmethyl ester

Acetic acid (2R,3S,4S,5R)-4-chloro-5-(6-dibenzoylamino-purin-9-yl)-3-phenylsulfanyl-tetrahydro-furan-2-ylmethyl ester