1. Department of ChemistryFaculty of ScienceTokyo University of Science, 1–3 Kagurazaka Shinjuku-ku Tokyo 162-8601 Japan
2. Department of Liberal ArtsFaculty of MedicineSaitama Medical University 38 Morohongo, Moroyama-machi, Iruma-gun Saitama 350-0495 Japan
3. Faculty of Pharmaceutical SciencesToho University 2-2-3 Miyama, Funabashi-shi Chiba 274-8510 Japan