○Edy Meiyanto1, 2, Febri Wulandari2, Dhania Novitasari2, JunYa Kato3(1.Macromolecular Engineering Laboratory, Dept. of Pharmaceutical Chemistry, Faculty of Pharmacy, Univ. Gadjah Mada, Indonesia, 2.Cancer Chemoprevention Research Center, Faculty of Pharmacy, Univ. Gadjah Mada, Indonesia, 3.Laboratory of Tumor Cell Biology, Division of Biological Science, Graduate School of Science and Tech., Nara Institute of Science and Tech., Nara, Japan)