Peptide Ligations Accelerated by <i>N</i>-Terminal Aspartate and Glutamate Residues
作者:Gemma L. Thomas、Yves S. Y. Hsieh、Candy K. Y. Chun、Zheng-Li Cai、Jeffrey R. Reimers、Richard J. Payne
DOI:10.1021/ol2017356
日期:2011.9.16
A novel application of intramolecular base catalysis confers enhanced reaction rates for aminolysis ligations between peptide thioesters and peptides bearing N-terminal aspartate or glutamate residues. The broad scope of this process and its application in the total synthesis of the diabetes drug exenatide is demonstrated.
One-Pot Peptide Ligation–Desulfurization at Glutamate
作者:Katie M. Cergol、Robert E. Thompson、Lara R. Malins、Peter Turner、Richard J. Payne
DOI:10.1021/ol403288n
日期:2014.1.3
steps from protected glutamic acid and could be incorporated at the N-terminus of peptides. The application of these peptides in one-pot ligation–desulfurization chemistry is demonstrated with a range of peptide thioesters, and the utility of this methodology is highlighted through the synthesis of the osteoporosis peptide drug teriparatide (Forteo).