1. Laboratory
of Marine Biology and Biotechnology, Qingdao National Laboratory for
Marine Science and Technology, Key Laboratory of Experimental Marine
Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, People’s Republic of China
2. Institut
für Pharmazeutische und Medizinische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
3. Department
of Organic Chemistry, University of Debrecen, POB 400, 4002 Debrecen, Hungary