1. Department of Medicinal Chemistry, Center for Natural Product Drug Discovery & Development (CNPD3), College of Pharmacy, University of Florida, Gainesville, Florida 32610, USA
2. Division of Molecular Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, Florida 32826, USA
3. Department of Chemistry, University of Florida, Gainesville, Florida 32610, USA
4. McKnight Brain Institute, J H Miller Health Center, University of Florida, Gainesville, Florida 32610, USA