1. Pfizer, 4300 Oak Park Road, Sanford, North Carolina 27330, United States
2. Catalent Pharma
Solutions, 160 Pharma Drive, Morrisville, North Carolina 27560, United States
3. Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
4. Department of Chemistry and Biochemistry, University of Texas—Arlington, Arlington, Texas 76019, United States