1. Laboratory for Pharmacotherapy and Experimental Neurology, Kagawa School of Pharmaceutical Sciences; Tokushima Bunri Univ; Kagawa 769-2193 Japan
2. Dept. of Pharmacy; Shikoku Medical Center for Children and Adults; Kagawa 765-8507 Japan
3. Otsuka Pharmaceutical Co, Ltd, Second Tokushima Factory, Bulk Pharmaceutical Chemicals Dept; Second Tokushima Factory, Production Headquarters; Tokushima 771-0192 Japan
4. Dept. of Cell Physiology, Faculty of Medicine; Kagawa Univ; Kagawa 761-0793 Japan
5. Research Laboratory; Matsutani Chemical Industry Co. Ltd; Hyogo Japan
6. Laboratory of Molecular Brain Science, Graduate School of Integrated Arts and Sciences; Hiroshima Univ; Hiroshima 739-8521 Japan
7. Rare Sugar Research Center; Kagawa Univ; Kagawa 761-0793 Japan