Synthesis and Utility of β-Selenophenylalanine and β-Selenoleucine in Diselenide–Selenoester Ligation
作者:Xiaoyi Wang、Leo Corcilius、Bhavesh Premdjee、Richard J. Payne
DOI:10.1021/acs.joc.9b02665
日期:2020.2.7
The synthesis of suitably protected beta-selenophenylalanine and beta-selenoleucine amino acids was accomplished from Garner's aldehyde as a common starting point. These selenoamino acids were incorporated into model peptides and shown to facilitate rapid diselenide-selenoester ligation (DSL) with peptide selenoesters which, when coupled with in situ deselenization, afforded native peptide products. The utility of one-pot DSL-deselenization chemistry at phenylalanine and leucine was demonstrated through the rapid synthesis of a glycosylated interferon-gamma fragment and the chemokine-binding protein UL22A, respectively.