1. Loker Hydrocarbon Research Institute & Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
2. Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario M5G 1X5 Canada
3. Department of Chemistry and Chemical Biology, Cornell University, NE-CAT, Argonne, Illinois 60439, United States
4. Departments of Molecular Genetics and Biochemistry, University of Toronto, Toronto, Ontario, Canada
5. USC Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California 90089, United States