1. Department of Applied Chemistry
and Biotechnology, Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
2. Graduate School of Pharmaceutical
Sciences, University of Toyama, Sugitani
2630, Toyama 930-0194, Japan
3. Department of Medicinal and Organic
Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan