1. Chemistry of Medicinal Plants Department, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt
2. Pharmacognosy Department, Faculty of Pharmacy, Sphinx University, New Assiut City, Assiut, 10, Egypt
3. Phytochemistry and Plant Systematics Department, National Research Centre, 33 El, Bohouth St., Dokki, Cairo 12622, Egypt
4. Department of Natural Compounds Chemistry, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt
5. Chemistry of Natural and Microbial Products Department, National Research Centre, 33 El, Bohouth St., Dokki, Giza 12622, Egypt
6. Department of Chemistry and Biochemistry Texas Tech University, Lubbock, TX 79409 USA
7. Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Staudinger Weg 5, 55128 Mainz, Germany