1. Contribution from the Institute for Fundamental Research of Organic Chemistry (IFOC) and Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 6-10-1, Fukuoka 812-8581, Japan, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan, Nagoya Institute of Technology, Nagoya 466-8555, Japan, and Department of Applied Chemistry, Faculty of Engineering, Hiroshima University, Kagamiyama 1-4-1, Higashi-Hiroshima 739-8527, Japan