1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
2. Department of Pharmaceutics, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
3. Department of Molecular Biotechnology, Hochschule Anhalt, Köthen, Germany
4. Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia