1. Leibniz Institute for Natural Product Research and Infection Biology−Hans Knöll Institute (HKI), Beutenbergstraße 11a, 07745 Jena, Germany
2. Institute
for Inorganic and Analytical Chemistry, Friedrich Schiller University, Humboldtstraße 8, 07743 Jena, Germany
3. State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, People’s Republic of China
4. Oncotest GmbH, Am Flughafen 12-14, 79108 Freiburg, Germany
5. Friedrich Schiller University, 07737 Jena, Germany