1. Organic Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐5592
2. Biochemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49) 40‐42838‐2848
3. Food Chemistry, Department of Chemistry, Faculty of Sciences, Hamburg University, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany)