1. Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
2. Department of Chemistry, Missouri State University, 901 South National Avenue, Springfield, Missouri 65897, United States
3. Department of Chemical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
4. Department of Chemistry, University of California Irvine, Irvine, California 92697, United States