1. Contribution from the Institute for Fundamental Research of Organic Chemistry, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-81, Japan, Section of Biofunctional Chemistry, Department of BioEngineering, Nagaoka University of Technology, Kamitomioka 940-21, Japan, Department of Applied Chemistry, Osaka University, Yamadaoka, Suita 565, Japan, and Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466, Japan