1. Institute
of Biology, Medicinal Chemistry and Biotechnology, The National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 11635 Athens, Greece
2. Institut de Química Computacional i Catàlisi (IQCC)
and Departament de Química, Universitat de Girona, Campus de
Montilivi, 17071 Girona, Catalonia, Spain
3. Department of Chemistry
and Biochemistry, University of California, Santa Barbara, California 93106, United States of America