1. Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
2. Department of Biochemical & Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
3. Department of Chemistry & Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA
4. Center for Marine Biotechnology & Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA