Institution: | 1. Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037 (USA), Fax: (+1)?858‐784‐7375;2. Laboratory of Organic Chemistry, Swiss Federal Institute of Technology, H?nggerberg HCI H309, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Switzerland) |