1. Department of Chemistry and Biochemistry, Concordia University, 7141 Rue Sherbrooke Ouest, Montréal, Québec, H4B 1R6, Canada
2. School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
3. Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia