1. Laboratory of Aquatic
Natural Products Chemistry, Graduate School of Agricultural and Life
Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
2. Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
3. Sugashima
Marine Biological Laboratory, Nagoya University, Mie 517-0004, Japan
4. Graduate School of Fisheries Science and
Environmental Studies, Nagasaki University, Nagasaki 852-8521, Japan