1. Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
2. Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
3. Pharmacognosy Department, Faculty of Pharmacy, University of Sadat City, Menoufia, Egypt
4. Chemistry Department, Science College, Princess Noura Bint Abdul Rahman University, Riyadh 11671, Saudi Arabia
5. Department of Medicinal Chemistry, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China