1. Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt;
2. Biochemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt;
3. Department of Functional Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany;
4. Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt;
5. Oman College of Health Sciences, Muscat, Sultanate of Oman;
6. Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY, USA