1. Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
2. Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
3. Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
4. Computational Chemical Biology Core and Molecular Graphics and Modeling Laboratory, The University of Kansas, Lawrence, Kansas 66045, United States
5. Department of Medicinal Chemistry and Molecular Pharmacology and Department of Chemistry, Purdue University, 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States