1. Organic & Medicinal Chemistry Department, Faculty of Pharmacy, University of Sadat City, Menoufia, Egypt
2. Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Eini Street 11562, Cairo, Egypt
3. Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Menoufia 32897, Egypt
4. Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
5. Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
6. Alexandria University, Department of Chemistry, Faculty of Science, Alexandria, Egypt