1. Karlsruhe Institute of Technology (KIT) Institute of Biological Interfaces (IBG-2) POB 3640 76021 Karlsruhe Germany
2. Karlsruhe Institute of Technology (KIT) Institute of Organic Chemistry Fritz-Haber-Weg 6 76131 Karlsruhe Germany
3. Present address: Syngenta Crop Protection AG 4333 Münchwilen Switzerland
4. Instituto de Medicina Molecular Faculdade de Medicina Universidade de Lisboa 1649-028 Lisbon Portugal
5. Present address: ITQB Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Av. da República 2780-157 Oeiras Portugal
6. LIPPSO, Department of Chemistry University of Girona, Campus Montilivi 17071 Girona Spain
7. Institute of Natural Sciences and School of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China