1. School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
2. Research
Organization of Science and Technology, Research Center for Drug Discovery and Pharmaceutical Science, Nojihigashi, Kusatsu, Shiga 525-8577, Japan
3. Graduate
School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan