1. Department of Organic Chemistry, Southern Research Institute, Birmingham, AL, USA
2. Southern Research Molecular Libraries Screening Center, Southern Research Institute, Birmingham, AL, USA
3. Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
4. Institute for Antiviral Research, Utah State University, Logan, UT, USA
5. Department of Biochemistry and Molecular Biology, Southern Research Institute, Birmingham, AL, USA