4'-Thionucleoside derivatives as potent and selective A3 adenosaine receptor agonists were synthesized, starting from D-gulono-gamma-lactone via D-thioribosyl acetate as a key intermediate, among which the 2-chloro-N6-methyladenosine-5-methyluronamide showed the most potent and selective binding affinity (Ki = 0.28 +/- 0.09 nM) at the human A3 adenosine receptor.

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http://dx.doi.org/10.1081/NCN-200061827DOI Listing

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