1. Chemistry of Medicinal Plants Department, National Research Centre, Dokki, Cairo, Egypt / Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
2. Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
3. Department of Pharmacognosy, Faculty of Pharmacy, El-Minia University, El-Minia 61519, Egypt
4. Natural Products Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
5. Department of Chemistry, Aswan-Faculty of Science, South Valley University, Aswan, Egypt
6. Hassan Chemistry of Medicinal Plants Department, National Research Centre, Dokki, Cairo, Egypt
7. Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
8. Department of Chemistry, Faculty of Science, El-Minia University, El-Minia 61519, Egypt