Affiliation: | 1. Department Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University, Ube 755‐8611 (Japan), Fax: (+81)?836‐85‐9231;2. Department of Applied Chemistry, Graduate School of Science and Engineering, Yamaguchi University, Ube 755‐8611 (Japan);3. Department of Chemistry, Graduate School of Science of Engineering, Ehime University, Matsuyama 790‐8577 (Japan) |