1. Research Centers for Marine Drugs and Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, People’s Republic of China
2. Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, Fisciano 84084, Italy
3. Department of Organic Chemistry, University of Debrecen, POB 400, H-4002 Debrecen, Hungary