1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey;
2. Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey;
3. Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia;
4. Neurofarba Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Sesto Fiorentino, Florence, Italy