1. Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
2. Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
3. School of Molecular Sciences, Arizona State University, Tempe, Arizona 85281, United States
4. The Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85281, United States
5. Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, Maryland 21702, United States