Institute di Biostructure and Bioimaging IBB-CNR, Via Mezzocannone 16, 80134, Naples, ITALY., Bari, 70126, Bari, ITALY.,
Institute of Biostructures and Bioimaging, National Research Council, 80134, Naples, Italy., Department of Science and Technologic Innovation, Universita del Piemonte Orientale "A. Avogadro", 15121, Alessandria, Italy., Institute of Biostructures and Bioimaging, National Research Council, c/o Molecular Biotechnology Center, 10126, Turin, Italy., Institute of Crystallography, National Research Council, 70126, Bari, Italy.,
References: Not available.
Chemoselective Glycosylation of Peptides through S-Alkylation Reaction
An efficient and fast procedure in execution for synthesizing S-linked glycopeptides is reported. It uses activated molecular sieves as a base to promote the selective S-alkylation of readily prepared cysteine-containing peptides, upon reaction of appropriate glycosyl halides. Due to the very mild conditions employed, the chemoselective linkage of the electrophilic sugar with a peptide sulfhydryl group occurred in a satisfactory yield, allowing the incorporation of mono and disaccharide moieties. The sugar-peptide conjugates obtained from alpha-D-glycosyl derivatives adopt a beta-S-conformation, indicating the high stereoselectivity of the substitution reaction.
http://www.chemistryviews.org/details/ezine/11014914/Efficient_Synthesis_of_S-Linked_Glycopeptides.html
Chemoselective Glycosylation of Peptides through S-Alkylation Reaction