1. Department of Enzymology, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, 06120 Halle/Saale, Germany
2. Department of Natural Product Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, 06120 Halle/Saale, Germany
3. Department of Medical Chemistry, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, 06120 Halle/Saale, Germany
4. Department of Biochemistry, University of Bayreuth, 95447 Bayreuth, Germany