Affiliation: | 1. Discovery Research, Mochida Pharmaceutical Co. Ltd, , Gotemba, Shizuoka, 412‐8524 Japan;2. Department of Bioscience for Drug Discovery, Tohoku University Graduate School of Medicine, , Aoba‐ku, Sendai, 980‐8575 Japan;3. Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, , Aoba‐ku, Sendai, 980‐8575 Japan |