1. Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
2. Department of Chemistry, School of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8851, Japan
3. Nippon Oil and Fats Co. Ltd., Ohama, Amagasaki 660, Japan
4. Department of Chemistry, School of Science, Kitasato University, Kitasato, Sagamihara 228, Japan