1. Department of Chemistry
2. Faculty of Science
3. Al-Azhar University
4. Assiut 71524
5. Egypt
6. Assiut University
7. Assiut 71516
8. Department of Pharmacology & Toxicology
9. Faculty of Pharmacy
10. Al-Azhar University, Assiut Branch
11. Assiut
12. 71524 Egypt
13. Pharmaceutical Organic Chemistry Department
14. Cairo University
15. Cairo
16. Organic & Medicinal Chemistry Department
17. University of Sadat City