1. Department of Chemistry & Biochemistry, University of Delaware, 163 The Green, Newark, Delaware 19716, United States
2. Institute of Chemical Research of Catalonia (ICIQ), 43007 Tarragona, Spain
3. School of Medicine, University of Leeds, Leeds LS2 9JT, U.K.
4. Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
5. Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States