1. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
2. Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
3. New Products Development Laboratory, Maruzen Petrochemical Co., Ltd., Ichihara, Chiba 290-8503, Japan