1. Key Laboratory of
Marine Drugs, Chinese Ministry of Education, School of Medicine and
Pharmacy, Ocean University of China, Qingdao 266003, People’s Republic of China
2. Pharmacology
and Toxicology Research Center, Institute of Medicinal Plant Development,
Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, People’s Republic of China
3. Department of Organic Chemistry, University of Debrecen, POB 20, 4010 Debrecen, Hungary