1. Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada
2. Canada Research
Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département
de Chimie, Université Laval, 1045 Avenue de la Médecine, Pavillon Alexandre-Vachon, Québec, Québec, G1V 0A6, Canada