1. Department of Chemistry; University of Milan; Italy
2. Italian Biocatalysis Center (IBC); c/o Dipartimento di Scienza del Farmaco; University of Pavia; Italy
3. Department of Biology and Biotechnology; University of Pavia; Italy
4. Istituto di Scienze e Tecnologie Molecolari (INSTM); CNR; c/o Department of Chemistry; University of Milan; Italy