1. 1Department of Chemistry “Ugo Schiff”, University of Florence, Polo Scientifico e Tecnologico, Via della Lastruccia 13, I-50019, Sesto Fiorentino, Florence, Italy
2. 2Department of Pharmacology “Mario Aiazzi Mancini”, University of Florence, Viale Pieraccini 6, 50139, Florence, Italy