1. Department of Applied Chemistry, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan
2. EC Frontier Co. Ltd., 3-2-30 Hikaridai, Seika, Soraku, Kyoto 619-0237, Japan
3. Green Chem. Inc., 19-19 Tsuruta, Nishi, Sakai, Osaka 593-8323, Japan
4. Osaka International Research Center for Infectious Diseases, Osaka Metropolitan University, 1-2 Gakuen, Naka, Sakai, Osaka 599-8570, Japan