1. NUBAD, LLC, Greenville, South Carolina 29605, United States
2. Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
3. School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
4. College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536-0596, United States