1. Marine Drugs Research Center; College of Pharmacy; Jinan University; 601 Huangpu Avenue West Guangzhou 510632 P.R. China
2. Institute of Organic Chemistry; University Würzburg; Am Hubland Würzburg 97074 Germany
3. Aquatic Animal Health Management Research Unit; Department of Marine Sciences; Faculty of Sciences and Fishery Technology; Rajamangala University of Technology Srivijaya, Trang Campus, Sikao District; Trang Province 92150 Thailand