1. Department
of Pharmacology, Creighton University School of Medicine, Omaha, Nebraska 68178, United States
2. 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 92037, United States
3. Department
of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States