1. Organic
Chemistry in Life Science, Division of Food Science and Biotechnology,
Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
2. International Health & Welfare University Hospital, Nasushiobara, Tochigi 329-2763, Japan
3. Natural
Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
4. Chinese
Medicine
Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan