1. Department of Chemistry and Chemical Engineering, Niigata University
2. Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union of Medical College
3. Graduate School of Science and Technology, Niigata University
4. Center for Instrumental Analysis, Hokkaido University
5. Kobe Natural Products and Chemicals Co., Ltd.
6. Division of Genome Research, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research
7. Institute of Molecular and Cellular Biosciences, University of Tokyo