1. Department of Medicinal Chemistry and Center for Natural Products, Drug Discovery and Development, University of Florida, 1345 Center Drive, Gainesville 32610, Florida, United States
2. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
3. Marine Science Institute, College of Science, University of the Philippines, Diliman, Quezon City 1100, Philippines