1. Department of Pharmaceutical
Biology and Biotechnology, Albert-Ludwigs-Universität, 79104 Freiburg, Germany
2. Escuela de Quimica and CIPRONA, Universidad de Costa Rica, 2060 San José, Costa
Rica
3. Department of Pharmaceutical Industry, Universidade Federal de Santa Maria, 97015-900 Santa
Maria, Brazil
4. Institute of Pharmacy, Eberhard-Karls-Universität, D-72076 Tübingen,
Germany
5. Department of Structural Biology, Helmholtz Centre for Infection Research, D-38124 Braunschweig,
Germany