1. Chemistry Department, Faculty of Science, New
Valley University, El-Kharja 72511, Egypt
2. Biochemistry Laboratory, Chemistry Department, Faculty of Science, Assiut University,
Assiut 71516, Egypt
3. Natural and Microbial Products Department, National Research
Center (NRC), Cairo 12622, Egypt
4. Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
5. Department of Chemistry, Taibah University, Madinah 42353, Saudi Arabia
6. Chemistry Department, Faculty of Science, New Valley University, El-Kharja 72511, Egypt