A Bottom-Up Approach To Preserve Thioamide Residue Stereochemistry during Fmoc Solid-Phase Peptide Synthesis
2019
Camacho, Luis A. | Lampkin, Bryan J. | VanVeller, Brett
Thioamides are useful biophysical probes for the study of peptide structure and folding. The α-C stereochemistry of thioamide amino acids, however, is easily epimerized during solid-phase peptide synthesis (SPPS), which limits the sequence space that is available to thioamide incorporation. This work demonstrates that the α-C stereochemistry of thioamides can be reversibly protected in a manner that is compatible with the standard methodology of SPPS to enable the facile implementation of thioamide probes.
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