1. Institute
of Chemical Biology and Drug Discovery, Stony Brook University, Stony
Brook, New York 11794, United States
2. Division
of Cancer Research, Medical Research Institute, University of Dundee, Dundee DD1 9SY, Scotland United Kingdom
3. Department
of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
4. Department
of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
5. Department
of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States