1. Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); Universitätsstrasse 10 66123 Saarbrücken Germany
2. Department of Chemistry and Graduate School Chemical Biology; University of Konstanz; 78457 Konstanz Germany
3. Deutsches Zentrum für Infektionsforschung (DZIF); Inhoffenstraße 7 38124 Braunschweig Germany
4. Centre de Recherche sur les Macromolécules Végétales (CERMAV-UPR5301); CNRS and Université Grenoble Alpes, BP53; 38041 Grenoble cedex 9 France
5. Institute of Chemistry; University of Potsdam; 14476 Potsdam Germany