1. Departments of Physical and Analytical Chemistry and Pharmacognosy, School of Pharmacy, and Graduate School of Human Ecology, Human Ecology Major, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya 463-8521, Japan, and San-Ei Gen FFI Inc., 1-1-11 Sanwa-cho, Toyonaka, Osaka 561-8588, Japan