1. Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ)Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
2. Institute of Technical Chemistry and Center of Biomolecular Drug Research (BMWZ)Leibniz Universität Hannover Callinstr. 5 30167 Hannover Germany
3. Symrise AG Mühlenfeldstrasse 1 37603 Holzminden Germany
4. Kekulé-Institute of Organic Chemistry and BiochemistryUniversity of Bonn Gerhard-Domagk-Straße 1 53121 Bonn Germany