1. Faculty of Pharmaceutical Sciences, University of Tokushima, Shomachi 1-78, Tokushima, 770-8505, Japan, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan, Faculty of Integrated Arts and Sciences, University of Tokushima, Minamijosanjima, Tokushima 770-8502, Japan, and Academy of Sciences, Uzbekistan Institute of Botany and Botanical Garden, F. Khodzhaev, St. 32, 700143 Tashkent, Uzbekistan