1. Department of Clinical Nutrition, Faculty of Health Science Suzuka University of Medical Science Suzuka Mie 510-0293 Japan
2. Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
3. Department of Chemistry Graduate School of Science Hokkaido University Sapporo 060-0810 Japan
4. Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan