1. Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China, State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, 354 Feng-Lin Road, Shanghai 200032, People's Republic of China, Department of Pharmacy, 306 Hospital, Beijing, 100101, People's Republic of China, and Natural Products Laboratory, School of Pharmacy, University of North...