Rapid and Highly Productive Assembly of a Disulfide Bond in Solid-Phase Peptide Macrocyclization
作者:Arnab Chowdhury、Vinod Gour、Basab Kanti Das、Saurav Chatterjee、Anupam Bandyopadhyay
DOI:10.1021/acs.orglett.3c00078
日期:2023.3.3
we report a highly efficient disulfide-driven peptide macrocyclization in 15 min on a solid support using persulfate as a crucial additive in iodine-mediated oxidative cyclization. The method eliminates the side products of classical iodine-mediated peptide cyclization. It is operationally simple and convenient for cyclizing small to lengthier peptides embodying popular cysteine building blocks in
Site-Specific Conjugation of Peptides and Proteins via Rebridging of Disulfide Bonds Using the Thiol–Yne Coupling Reaction
作者:Nils Griebenow、Alicia M. Dilmaç、Simone Greven、Stefan Bräse
DOI:10.1021/acs.bioconjchem.5b00682
日期:2016.4.20
methodology proved to be reproducible with various alkynes and different peptides. This study includes the first rebridging of the disulfide bond of a peptide through a thiol-yne reaction with a cyclooctyne. In all cases, the rebridging was proven by MS analyses and confirmed by the absence of olefinic protons on 1H NMR spectra of the resulting products. Finally, this one-pot reduction thiol-yne conjugation