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Solid-Phase Azopeptide Diels-Alder Chemistry for Aza-pipecolyl Residue Synthesis To Study Peptide Conformation.

  • May 17, 2019

Solid-phase chemistry for the synthesis and Diels–Alder reaction of Fmoc-protected azopeptides has been developed and used to construct aza-pipecolyl (azaPip) peptides. Considering their ability to induce electronic and structural constraints that favor cis-amide isomer geometry and type VI β-turn conformation in model peptides, azaPip residues have now been introduced into biologically relevant targets by this enabling synthetic method. Turn conformers were shown to be important for receptor affinity, selectivity, and activity by employing azaPip residues to study the conformational requirements of opioid and cluster of differentiation 36 receptor peptide ligands.


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