1. Technische Universität Braunschweig, Institute of Organic Chemistry, Hagenring 30, 38106 Braunschweig, Germany
2. Umweltbundesamt, Boetticherstraße 2 (Haus 19), Dahlemer Dreieck, 14195 Berlin, Germany
3. Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E8.1, 66123 Saarbrücken, Germany
4. Department of Bioscience, University of Oslo, P. O. Box 1066 Blindern, 0316 Oslo, Norway
5. University of Göttingen, JFB Institute of Zoology and Anthropology, 37073 Göttingen, Germany
6. University of Göttingen, Centre of Biodiversity and Sustainable Land Use, 37077 Göttingen, Germany