1. Department of Organic and Pharmaceutical Chemistry, School of Life and Medical Sciences University of Hertfordshire Hosted by Global Academic Foundation, New Administrative Capital Cairo Egypt
2. Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology German University in Cairo Cairo Egypt
3. Department of Chemistry, Faculty of Pharmacy Ahram Canadian University Cairo Egypt
4. Department of Pharmaceutical and Medicinal Chemistry Saarland University Saarbrücken Germany