1. Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, I-34127 Trieste, Italy
2. Molecular Modeling Section (MMS), Dipartimento di Scienze Farmaceutiche, Università di Padova, via Marzolo 5, I-35131 Padova, Italy
3. Department of Pharmacy, National University of Singapore, 3 Science Drive 2, Singapore 117543
4. Dipartimento di Scienze Farmaceutiche, Università degli Studi di Ferrara, via Fossato di Mortara 17-19, I-44100 Ferrara, Italy
5. Institut für Pharmakologie, Universität of Würzburg, D-97078 Würzburg, Germany
6. Molecular Recognition Section (MRS), Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States