1. a College of Pharmacy, Nihon University , 7-7-1, Narashinodai, Funabashi-shi, Chiba, 274, Japan
2. b College of Science and Technology, Nihon University , 1--8, Kandasurugadai, Chiyoda-ku, Tokyo, 101, Japan
3. c Nagoya Bunri College , 2--1, Sasazukamachi, Nishi-ku, Nagoya-shi, Aichi, 451
4. d Sumika Chemical Analysis Service , 3-1-135, Kasugadenaka, Konohana-ku, Osaka, 554, Japan