1. Department of Chemistry, Ball State University, Muncie, Indiana 47306, United States
2. Department of Biology, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
3. Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
4. Basic Science Program, Leidos Biomedical Research Inc. National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States
5. Department of Chemistry, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States