Affiliation: | 1. Faculté de Pharmacie, Université de Montréal, PO Box 6128 Downtown Station, Montréal, QC, H3C 3J7 (Canada);2. Department of Chemistry, Queen's University, Chernoff Hall, 90 Bader Lane, Kingston, ON, K7L3N6 (Canada), Fax: (+1)?613‐533‐6669 |