1. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia;
2. Department of Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt;
3. Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt;
4. Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt;
5. Department of Pharmaceutical Chemistry, Faculty of pharmacy, Horus university, New Damietta, Egypt