1. Department of Pharmaceutical and Medicinal Chemistry, School of Pharmacy; Friedrich Schiller University Jena; Jena Germany
2. Faculty of Chemistry; Aalen University; Aalen Germany
3. Institute of Pharmaceutical Science; University of Tübingen; Tübingen Germany
4. Center of Excellence for Polysaccharide Research, Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich Schiller University Jena; Jena Germany