1. Department of Medicinal Chemistry and Institute for Therapeutics
Discovery and Development, College of Pharmacy, University of Minnesota, 717 Delaware Street, SE, Minneapolis, Minnesota 55414, United States
2. Department of Biochemistry, Molecular Biology
and Biophysics, University of Minnesota, 321 Church Street, SE, Minneapolis, Minnesota 55455, United States
3. Department
of Natural Product Chemistry, Helmholtz Center for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
4. Screening Technologies
Branch, Developmental Therapeutics Program, Division of Cancer Treatment
and Diagnosis, Frederick National Laboratory for Cancer Research,
National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702, United States