1. School
of Pharmaceutical Sciences, College of Medical, Pharmaceutical and
Health Sciences, Kanazawa University, Kanazawa 920-1192, Japan
2. Natural
Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
3. Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
4. NIH Special Volunteer, Wayne, Pennsylvania 19087, United States
5. Chinese
Medicine Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan