1. Drug Discovery Program, College of Pharmacy, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612, Department of Medicinal Chemistry and Pharmacognosy and the Center for Pharmaceutical Biotechnology, University of Illinois at Chicago, 900 South Ashland, Chicago, Illinois 60607, and College of Medicine, Department of Immunology and Division of Oncology Research, Mayo Clinic, 13-42 Guggenheim, 200 First Street SW, Rochester,...