1. Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
2. Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
3. Department
of Pharmacology, School of Medicine, Wayne State University, Detroit, Michigan 48201, United States
4. Barbara Ann Karmanos Cancer Institute, Detroit, Michigan 48201, United States