1. Department of Chemistry, Faculty of Science and Arts, Khulais; University of Jeddah; Saudi Arabia
2. Inorganic Chemistry Department; National Research Centre; El-bohouth St., P.O. 12622, Dokki Cairo Egypt
3. Chemistry Department, Faculty of Science; Al Imam Mohammad Ibn Saud Islamic University (IMSIU); PO Box 5701 Riyadh 11432 Saudi Arabia
4. Biochemistry Department, Division of Genetic Engineering and Biotechnology; National Research Center; Cairo Egypt
5. Division of Pharmaceutical and Drug Industries, Department Chemistry of Natural and Microbial products; National Research Centre; Dokki Cairo 12622 Egypt