1. Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Giza, Egypt
2. Pharmacology Department, National Research Centre, Dokki, Giza, Egypt
3. Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
4. The National Committee of Drugs, Academy of Scientific Research and Technology, Cairo, Egypt