1. Department of Chemistry, Faculty of Science and Arts Taibah University Medina Saudi Arabia
2. Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
3. Photochemistry Department (Heterocyclic Unit) National Research Centre Giza Egypt
4. Chemistry Department, Faculty of Science Jazan University Jazan Saudi Arabia
5. Medicinal and Aromatic Plants Department Desert Research Center Cairo Egypt