1. Pharmaceutical Chemistry Department, College of Pharmacy; Taif University; Taif Saudi Arabia
2. Department of Chemistry of Natural and Microbial Products; National Research Center; Dokki Cairo Egypt
3. Medicinal Chemistry Department; National Research Center; Dokki Cairo Egypt
4. Department of Applied Organic Chemistry; National Research Centre; Dokki Giza Egypt
5. Pharmacology Department, Faculty of Pharmacy; Complutense University of Madrid; Madrid Spain