1. Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi, USA.
2. Department of Chemistry, Faculty of Agriculture, Damietta University, Damietta, Egypt.
3. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA.
4. Pharmaceutical Analytical Chemistry Department, Suez Canal University, Ismailia, Egypt.
5. Department of Pharmaceutics and Drug Delivery, University of Mississippi, University, Mississippi, USA.