1. Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
2. Department of Chemistry, Faculty of Science, University of Chittagong, Chattogram 4331, Bangladesh
3. Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AlbertaT6G 2E1, Canada
4. Li Ka Shing Institute of Virology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2E1, Canada