Peptide modification through site-selective residue interconversion: application of the rhodium-catalysed 1,4-addition of aryl siloxanes and boronates
作者:Christopher J. Chapman、Jonathan D. Hargrave、Gerwyn Bish、Christopher G. Frost
DOI:10.1016/j.tet.2008.07.067
日期:2008.9
The site-selective interconversion of serine and cysteine residues of di- and tripeptides into phenylalanine derivatives, bearing a range of functionalities, has been achieved in high yield and selectivity through the common dehydroalanine intermediate. Through the application and development of the rhodium-catalysed 1,4-addition to alpha,beta-dehydroamino acid moieties with organometallic nucleophiles, a variety of peptides have been successfully modified to contain unnatural amino acid residues in predesignated residue positions. (C) 2008 Elsevier Ltd. All rights reserved.