1. Department of Biopharmaceutics and Drug Metabolism; Graduate School of Pharmaceutical Sciences; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
2. Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
3. Department of Pharmacotherapeutics; Faculty of Pharmaceutical Sciences; Doshisha Women's College of Liberal Arts; Kyotanabe Kyoto 610-0395 Japan