1. Department of Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche, Università degli Studi di Firenze, Florence, Italy;
2. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia;
3. Istituto di Bioscienze e Biorisorse, CNR, Napoli, Italy;
4. School of Chemistry, University of New South Wales, Sydney, Australia