1. Graduate
School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
2. Koei Chemical Company, Ltd., 25, Kitasode,
Sodegaura, Chiba 299-0266, Japan
3. Faculty
of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan