1. Departments
of Pharmacognosy,
Pharmacology, Chemistry, and Biochemistry and National Center for
Natural Products Research, School of Pharmacy, University of Mississippi, Mississippi 38677, United States
2. Department of Pharmacognosy,
Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
3. Department
of Medicinal Chemistry,
School of Pharmacy, University of Mississippi, Mississippi 38677, United States