1. Department
of Chemistry, Vassar College, Poughkeepsie, New York 12604-0484, United States
2. Department
of Theoretical and Applied Sciences, Division of Biomedical Sciences, University of Insubria, Via A. da Giussano 10, 21052 Busto Arsizio, Varese, Italy
3. School
of Science and Technology, Chemistry Section, University of Camerino, Via S. Agostino 1, 62032 Camerino Italy
4. School
of Pharmacy, Chemistry Section, University of Camerino, Via S. Agostino
1, 62032 Camerino Italy