1. Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
2. Instituto de Investigaciones Cientı́ficas y Servicios de Alta Tecnologı́a, Ciudad del Saber, Clayton 0843-01103, Panamá
3. Departamento de Fı́sica e Quı́mica, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040903, Brazil
4. Institute of Biomolecular Chemistry, National Research Council, 80078 Pozzuoli, Italy