A one-pot saponification-coupling sequence suitable for C-terminus peptide elongation using lithium carboxylates

Article abstract of DOI:10.1055/s-0034-1378330

An efficient procedure has been developed for the saponification of common peptide esters, followed by straightforward coupling of the lithium carboxylate. Adding some water to the reaction medium gave faster saponification and did not interfere with the coupling reagent. As peptide chemistry constitutes a major application of the amidation reaction, amino acid substrates were chosen for this study, monitoring both yields and epimerization of the peptides obtained. Georg Thieme Verlag Stuttgart New York.