1. Chemistry of Medicinal Plant Department, National Research Center, Dokki, Cairo, Egypt
2. Department of Chemistry, Aswan-Faculty of Science, South Valley University, Aswan, Egypt
3. Department of Botany, Aswan-Faculty of Science, South Valley University, Aswan, Egypt
4. Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan