1. Natural Products
Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
2. Department of Agricultural Biotechnology, College of Agriculture
and Life Science, Seoul National University, San 56-1, Sillim,
Gwanak, Seoul 151-921, Korea
3. Faculty of Pharmacy, Universitas Indonesia, Kampus UI depok, West Java 16424, Indonesia
4. Department of Biological Science, College of Life Science and Nano
Technology, Hannam University, 461-6 Jeonmin,
Yuseong, Daejeon 305-811, Korea