1. Department of Chemistry, Faculty of Science, El-Minia University, El-Minia 6151, Egypt
2. Pharmacognosy and Chemistry of Medicinal Plant Department, National Research Center, Dokki, Egypt
3. Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
4. Department of Chemistry, Aswan-Faculty of Science, South Valley University, Aswan, Egypt
5. Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA