1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo, P.O. Box 11829, Egypt
2. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt (BUE), Suez Desert Road, El-Sherouk City, Cairo 11837, Egypt
3. Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University of Halle-Wittenberg, 06120 Halle (Saale), Germany