1. Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
2. Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02129, United States
3. Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
4. Institute of Biotechnology, University of Helsinki, Helsinki 00014, Finland
5. Laboratory of Medicinal Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8412, Japan