1. The University of Mississippi National Center for Natural Products Research, School of Pharmacy, , University, MS 38677, USA
2. State University of Ponta Grossa Department of Pharmaceutical Sciences, , Ponta Grossa, PR 84030-900, Brazil
3. The University of Mississippi Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, , University, MS 38677, USA