1. National Organization for Drug Control and Research (NODCAR), P.O.Box 29, Cairo, Egypt
2. Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt and National Organization for Drug Control and Research (NODCAR), P.O. Box 29, Cairo, Egypt
3. Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
4. Department of Chemistry, University of Sussex, School of Life Sciences, Falmer, Brighton, East Sussex, BN19QJ, United Kingdom