1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
2. Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei 430072, China
3. University of Niš, 18000 Niš, Serbia
4. Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong