1. Division of Biomodeling Department of Applied Molecular Biosciences Graduate School of Bioagricultural Sciences Nagoya University, Nagoya, 464-8601, Japan Division of Chemistry, Graduate School of Science Hokkaido University, Sapporo 060-0810, Japan Yokohama Research Center, Chisso Co. 5-1 Okawa, Kanazawa-ku, Yokohama 236-8605, Japan