1. Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
2. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 42805, Jeddah 21551, Saudi Arabia
3. Department of Therapeutic Chemistry, National Research Centre, Dokki, Cairo 12622, Egypt
4. Department of Pharmaceutical Medicinal Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt