The invention relates to methods for the preparation of peptides which are a C-terminal amide derivatives by a combination of solid-phase synthesis and post assembly solution phase synthesis. The peptides which are a C-terminal amide derivatives are further converted to peptide acetates. The invention also relates to pure peptide acetates and to protected peptide precursors.
作者:Michael B. Elbaum、Mahmoud A. Elkhalifa、Gary A. Molander、David M. Chenoweth
DOI:10.1021/acs.orglett.2c02012
日期:2022.7.22
Forging new C(sp3)–C(sp3) bonds to central positions within a peptide backbone is critical for the development of new therapeutics and chemical probes. Currently, there are no methods for decarboxylating Asp and Glu side chains solid-phase photochemically or using such radicals to form peptide macrocycles. Herein, electron-donor-acceptor complexes between Hantzsch ester and on-resin peptide N-hydroxyphthalimide