1. Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
2. Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Cairo, Egypt
3. Department of Chemistry, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
4. Department of Pharmaceutical Chemistry, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
5. Peptide Chemistry Department, National Research Centre, Cairo, Egypt