1. Department of Pharmaceutical Chemistry, College of PharmacyKing Khalid University Abha Saudi Arabia
2. Department of Chemistry, College of ScienceKing Saud University PO Box 2455 Riyadh 11451 Saudi Arabia
3. Department of ChemistryThe University of Jordan Amman 11942 Jordan
4. Department of Pharmacognosy, College of PharmacyKing Khalid University Abha Saudi Arabia