Bingchuan Zhao

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We report a β-hairpin dual stabilizing strategy: a d-proline-l-proline (d-Pro-l-Pro) dipeptide as the nucleating turn, and a thioether tether as a side-chain linkage at a precisely designed position to stabilize the β-hairpin. This method was used to modify the C-terminal β-hairpin moiety of the plant defensin, pv-defensin, in order to obtain a stabilized(More)
Inducing α-helicity through side-chain cross-linking is a strategy that has been pursued to improve peptide conformational rigidity and bio-availability. Here we describe the preparation of small peptides tethered to chiral sulfoxide-containing macrocyclic rings. Furthermore, a study of structure-activity relationships (SARs) disclosed properties with(More)
Thiol-ene reactions have been used in a variety of applications that mostly involve an inter-molecular pathway. Herein, we report a facile method to construct thioether-tethered cyclic peptides via an intra-molecular thiol-ene reaction. This reaction is efficient, selective, and has good residue compatibility. Short peptides with thioether tethers were(More)
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