1. Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA
2. Center for Computational Biology and Department of Molecular Biosciences, University of Kansas, Lawrence, KS 66047, USA
3. Analytical Research & Development, Merck and Co., Inc., Kenilworth, NJ 07033, USA
4. Nuclear Magnetic Resonance Lab, University of Kansas, Lawrence, KS 66045, USA
5. Protein Production Group, University of Kansas, Lawrence, KS 66047, USA
6. Department of Molecular Biosciences and Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA