1. Faculty of Pharmaceutical Sciences, University of Tokushima, Shomachi 1-78, Tokushima 770-8505, Japan, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan, Faculty of Pharmaceutical Sciences, Kyoto University, Yoshida Sakyoku, Kyoto 606-8501, Japan, Faculty of Integrated Arts and Sciences, University of Tokushima, Jyosunjima, Tokushima 770, Japan, and Academy of Sciences Uzbekistan Institute of Botany, F. Khodzhaev, St. 32, 700143 Tashkent, Uzbekistan