1. Watarase
Research Center, Kyorin Pharmaceutical CO., LTD., 1848, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
2. Department
of Chemistry, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 402, Taiwan
3. Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
4. Innovation
Center of NanoMedicne, Kawasaki Institute of Industry Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan