1. Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering Guangzhou Guangdong 510225 China
2. Department of Ocean ScienceThe Hong Kong University of Science and Technology (HKUST),Clear Water Bay Kowloon Hong Kong, China
3. School of Energy and Environment and State Key Laboratory of Marine PollutionCity University of Hong Kong Kowloon Hong Kong
4. CAS Key Laboratory of Tropical Marine Bio‐resources and Ecology, Guangdong Key Laboratory of Marine Materia MedicaSouth China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS) Guangzhou 510301 China