Zn-Catalyzed Nicotinate-Directed Transamidations in Peptide Synthesis
作者:Charlie Hollanders、Evelien Renders、Charlène Gadais、Dario Masullo、Laurent Van Raemdonck、Clarence C. D. Wybon、Charlotte Martin、Wouter A. Herrebout、Bert U. W. Maes、Steven Ballet
DOI:10.1021/acscatal.9b05074
日期:2020.4.3
transamidation for peptide synthesis is described. Transamidation under Zn catalysis is chemoselectively achieved by amino acidamide/peptidic amide derivatization with a tert-butyl nicotinate (tBu-nic) directing group. The directing group could be easily introduced on protected amino acidamides via Pd-catalyzed amidation with tert-butyl 2-chloronicotinate (tBu-nicCl). Under standard peptide coupling/deprotection