1. Laboratory
of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0820, United States
2. Dipartimento
di Farmacia, Università di Salerno, 84084 Fisciano (SA), Italy
3. National Institute of Water and Atmospheric Research, Aukland, New Zealand 1149
4. Coral Reef Research Foundation, Koror, Palau 96940