1. Chemistry of Natural Compounds Department, Institute of Pharmaceutical and Drug Industries Research, National Research Centre (NRC), Giza, Egypt
2. Department of Pharmacognosy, Institute of Pharmaceutical and Drug Industries Research, National Research Centre (NRC), Giza, Egypt
3. Department of the Chemistry of Natural and Microbial Products, Pharmaceutical and Drug Industries Institute, National Research Centre (NRC), Giza, Egypt
4. Chemistry of Medicinal Plants Department, Institute of Pharmaceutical and Drug Industries Research, National Research Centre (NRC), Giza, Egypt