1. Faculty of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Bielefeld, Germany
2. Faculty of Science, Chemistry Department, Al-Azhar University, Nasr City-Cairo, Egypt
3. Faculty of Science, Microbiology Department, Helwan University, Helwan-Cairo, Egypt
4. Faculty of Science, Botany and Microbiology Department, Damanhour University, Damanhour, Egypt
5. Inorganic and Structural Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
6. Pharmaceutical and Drug Industries Research Division, Chemistry of Natural Compounds Department, National Research Centre, Dokki-Cairo, Egypt