1. Department of Chemistry United Arab Emirates University Al-Ain United Arab Emirates
2. Department of Chemistry Faculty of Science Cairo University Gamma Street, Giza Cairo 12613 Egypt
3. Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland D-97074 Würzburg Germany
4. Department of Pharmaceutical Chemistry College of Pharmacy King Saud University Riyadh 11451 Saudi Arabia
5. Cancer Biology and Genetics Laboratory Centre of Excellence for Advanced Sciences National Research Centre Dokki Cairo 12622 Egypt
6. Biochemistry Department Biotechnology Research Institute National Research Centre Dokki Cairo 12622 Egypt