1. Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
2. Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Qingdao 266237, China
3. Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China