1. Graduate School of Agricultural Science Kobe University Kobe 657‐8501 Japan
2. Biosignal Research Center Kobe University Kobe 657‐8501 Japan
3. Institute for Glyco‐Core Research (iGCORE) Gifu University Gifu 501‐1193 Japan
4. Graduate School of Science Kobe University Kobe 657‐8501 Japan
5. Department of Chemistry and Pharmacy Medicinal Chemistry Friedrich‐Alexander‐Universität Erlangen‐Nürnberg Nikolaus‐Fiebiger‐Straße 10 91058 Erlangen Germany
6. Institute for Frontier Life and Medical Sciences Kyoto University Kyoto 606‐8507 Japan