Methanocarba ring, the rigid ribose modification for purine and pyrimidine receptors

Methanocarba ring as a ribose modification in ligands of G protein-coupled purine and pyrimidine receptors: synthetic approachesRibose containing adenosine receptors (ARs) and P2Y receptors for purine and pyrimidine nucleotides are involved in and regulate a myriad of physiological processes throughout the body, and have become important pharmaceutical targets for treating a diverse number of chronic and acute diseases.

An approach to enhance the selectivity of these nucleoside and nucleotide derivatives is to make the ribose ring more rigid. This is achieved by using a methanocarba (bicyclo[3.1.0]hexane) ring system as a rigid substitution for ribose which maintains either a North (N) or South (S) conformation, preserving or enhancing the potency and/or selectivity for certain receptor subtypes.

This review from Dilip K. Tosh and Kenneth A. Jacobson of the National Institute of Diabetes and Digestive and Kidney Diseases summarises recent advances in the synthetic approaches to methanocarba derivatives in the context of their use as definitive pharmacological probes.

Methanocarba ring as a ribose modification in ligands of G protein-coupled purine and pyrimidine receptors: synthetic approaches
Dilip K. Tosh and Kenneth A. Jacobson
DOI: 10.1039/C2MD20348K

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