1. CIQ/Department of Chemistry and Biochemistry
2. Faculty of Sciences
3. University of Porto
4. 4169-007 Porto
5. Portugal
6. Medicinal and Natural Products Chemistry Research Center
7. Shiraz University of Medical Sciences
8. Shiraz
9. Iran
10. Department of Physiology and Pharmacology Vittorio Erspamer
11. Sapienza University of Rome
12. Rome
13. Italy