Macrocyclization of Unprotected Peptide Isocyanates.

TitleMacrocyclization of Unprotected Peptide Isocyanates.
Publication TypeJournal Article
Year of Publication2016
AuthorsVinogradov AA, Choo Z-N, Totaro KA, Pentelute BL
JournalOrg Lett
Volume18
Issue6
Pagination1226-9
Date Published2016 Mar 18
ISSN1523-7052
KeywordsAmino Acid Sequence, Catalysis, Cyclization, Dicarboxylic Acids, Glutamates, Isocyanates, Molecular Structure, Peptides, Peptides, Cyclic
Abstract

A chemistry for the facile two-component macrocyclization of unprotected peptide isocyanates is described. Starting from peptides containing two glutamic acid γ-hydrazide residues, isocyanates can be readily accessed and cyclized with hydrazides of dicarboxylic acids. The choice of a nucleophilic linker allows for the facile modulation of biochemical properties of a macrocyclic peptide. Four cyclic NYAD-1 analogues were synthesized using the described method and displayed a range of biological activities.

DOI10.1021/acs.orglett.5b03626
Alternate JournalOrg. Lett.
PubMed ID26948900