An oxazetidine amino acid for chemical protein synthesis by rapid, serine-forming ligations
作者:Ivano Pusterla、Jeffrey W. Bode
DOI:10.1038/nchem.2282
日期:2015.8
we describe the synthesis of an Fmoc-protected oxazetidineaminoacid for use in the α-ketoacid–hydroxylamine (KAHA) amide ligation. When incorporated at the N-terminus of a peptide segment, this four-membered cyclic hydroxylamine can be used for rapid serine-forming ligations with peptide α-ketoacids. This ligation operates at low concentration (100 μM–5 mM) and mild temperatures (20–25 °C). The utility