1. Department of Therapeutic Chemistry Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
2. Chemistry of Natural and Microbial Products Department Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
3. Department of Pharmacognosy National Research Centre, Dokki Giza 12622 Egypt
4. Pharmaceutical Medicinal Chemistry Department, Faculty of Pharmacy Al-Azhar University (Girls) Cairo 11754 Egypt