1. Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260, USA
2. Department of Chemistry 151 Hofstra University 106F Berliner Hall Hempstead, NY 11549, USA
3. Institut Européen de Chimie et Biologie, UMS3011/US001 CNRS, Inserm, Université de Bordeaux, 2 rue Robert Escarpit, F-33600 Pessac, France
4. Department Pharmazie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, D-81377 Munich, Germany