1. Faculty of Science (Girl’s Branch), Département of Chemistry, Faculty of Science (Girl’s Branch), Al-Azhar Université, Cairo, Egypt;
2. Chemistry of Natural Compounds Département, National Research Centre, Dokki-Giza, Egypt;
3. Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Lorraine, France