Affiliation: | 1.Department of Chemistry, College of Science and Humanities,Prince Sattam bin Abdulaziz University,Al kharj,Saudi Arabia;2.Department of Pharmaceutical Chemistry, College of Pharmacy,King Saud University,Riyadh,Saudi Arabia;3.Department of Zoology, College of Science,King Saud University,Riyadh,Saudi Arabia;4.Chemistry of Natural Products Group, Center of Excellence for Advanced Sciences,National Research Center,Cairo,Egypt |