1. State Key Laboratory of Drug
Research, Institute of Materia Medica, Chinese Academy of Sciences, Zu Chong Zi Rd. 555, Zhangjiang Hi-Tech
Park, Shanghai 201203, P. R. China
2. College of Fisheries and Life Science, Water Environment & Ecology Engineer Research Center, Shanghai Ocean University, Shanghai 201306, P. R. China
3. Department of Organic Chemistry, University of Debrecen, P.O. Box 20, H-4010 Debrecen,
Hungary
4. Research Center
for Marine Drugs,
School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, P. R. China