1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls); Al-Azhar University; Cairo Egypt
2. Drug Exploration and Development Chair (DEDC), College of Pharmacy; King Saud University; Riyadh 11451 Saudi Arabia
3. Department of Theraputical Chemistry, Pharmaceutical and Drug Industries Division; National Research Centre; Giza Egypt
4. Research Unit, Saco Pharm. Co.; 6th October City 11632 Egypt