1. Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, P. R. China, Marine Drugs Research Center, College of Pharmacy, Jinan University, Guangzhou 510632, P. R. China, Institute of Organic Chemistry, University Würzburg, Am Hubland, 97074 Würzburg, Germany, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, P. R. China, Department of Marine...