1. Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
2. Chemical Process Development, Bristol Myers Squibb Company, New Brunswick, New Jersey 08903, United States
3. Department of Discovery Synthesis, Bristol Myers Squibb Research and Early Development, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States