Affiliation: | 1. Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan;2. Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan;3. Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan;4. Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan |