1. Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
2. Département
de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
3. Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada