1. Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Cairo University, Cairo, Egypt
2. Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, King Abdul Aziz University, Jeddah, Saudi Arabia
3. Faculty of Pharmacy, King Khalid University, Abha, Saudi Arabia
4. Faculty of Pharmacy, Biochemistry Department, Cairo University, Cairo, Egypt
5. Microbiology and Immunology Department, National Research Centre, Giza, Dokki, Egypt