Ring-Constrained (N)-Methanocarba nucleosides as adenosine receptor agonists: independent 5′-Uronamide and 2′-deoxy modifications

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Abstract

Novel methanocarba adenosine analogues, having the pseudo-ribose northern (N) conformation preferred at adenosine receptors (ARs), were synthesized and tested in binding assays. The 5′-uronamide modification preserved [N6-(3-iodobenzyl)] or enhanced (N6-methyl) affinity at A3ARs, while the 2′-deoxy modification reduced affinity and efficacy in a functional assay.

Novel methanocarba adenosine analogues, having the pseudo-ribose northern (N) conformation preferred at adenosine receptors (ARs), were synthesized and testing in binding assays. The 5′-uronamide modification preserved [N6-(3-iodobenzyl)] or enhanced (N6-methyl) affinity at A3ARs, while the 2′-deoxy modification reduced affinity and efficacy in a functional assay.

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