1. Department of Pharmacognosy
2. Faculty of Pharmacy
3. Deraya University
4. 61111 New Minia City
5. Egypt
6. Department of Pharmaceutical Chemistry
7. The British University in Egypt (BUE)
8. El-Sherouk City
9. Pharmacognosy Department
10. Assiut University
11. Assiut 71526
12. Institute of Organic Chemistry
13. University of Würzburg
14. 97074 Würzburg
15. Germany