1. Department of Medicinal Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045
2. The University of Kansas Center of Excellence in Chemical Methodologies and Library Development, Structural Biology Center, 2121 Simons Drive, Lawrence, Kansas 66047
3. Department of Medicinal Chemistry and the Institute for Therapeutics Discovery and Development, University of Minnesota, 717 Delaware Street SE, Minneapolis, Minnesota 55414