1. Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People’s Republic of China
2. Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
3. College of Biological and Environmental Engineering, Changsha University, Changsha 410022, People’s Republic of China
4. School of Medicine, Tongji University, Shanghai 200092, People’s Republic of China