Daletos Georgios 1, Liu Yang 1, 2, Kurtán Tibor 3, Wesselborg Sebastian 4, Stork Björn 4, Proksch Peter 1
1 Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University, Universitaetsstrasse 1, D-40225 Duesseldorf, Germany, Duesseldorf, Germany, 2 Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, P. R. China, Qingdao, China, 3 Department of Organic Chemistry, University of Debrecen, P. O. B. 20, 400, 4002 Debrecen, Hungary, Debrecen, Hungary, 4 Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University, Universitaetsstrasse 1, D-40225 Duesseldorf, Germany, Duesseldorf, Germany