1. Department of Life Science and Research Center of Life Science Rikkyo University Nishi-Ikebukuro, Toshima-ku Tokyo 171-8501 Japan
2. Faculty of Pharmaceutical Sciences Tokushima Bunri University Yamashiro-cho Tokushima 770-8514 Japan
3. Department of Chemistry Rikkyo University Nishi-Ikebukuro, Toshima-ku Tokyo 171-8501 Japan
4. College of Humanities and Sciences Nihon University Sakurajosui, Setagaya-ku Tokyo 156-8550 Japan
5. Graduate School of Biomedical Sciences Nagasaki University Bunkyo-machi Nagasaki 852-8521 Japan
6. Kunming Institute of Botany Chinese Academy of Science Kunming 650201 China