1. Department of Pharmaceutical ChemistryFaculty of PharmacyDelta University for Science and Technology Gamasa City 11152 Egypt
2. Department of Medicinal ChemistryFaculty of PharmacyMansoura University Mansoura 35516 Egypt
3. Department of Pharmaceutical Organic ChemistryFaculty of PharmacyMansoura University Mansoura 35516 Egypt
4. Department of PharmacognosyFaculty of PharmacyMansoura University, Mansoura 35516 Egypt