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자료유형
학술저널
저자정보
Lee, Dae-Young (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Kim, Dong-Hyun (School of Chemistry, University of Manchester) Bang, Myun-Ho (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Song, Myoung-Chong (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Kwak, Ho-Young (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Yoo, Ki-Hyun (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Chung, In-Sik (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University) Kim, Kyong-Tai (Department of Life Science, Division of Molecular and Life Science, Pohang University of Science and Technology) Baek, Nam-In (Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University)
저널정보
한국응용생명화학회 Journal of applied biological chemistry Journal of applied biological chemistry 제50권 제4호
발행연도
2007.1
수록면
275 - 280 (6page)

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Dried unripe fruits of Rubus coreanus Miq. were extracted with 80% aqueous MeOH and the concentrated extract was partitioned with EtOAc and $H_2O$. From the EtOAc fraction, four triterpenoids were isolated through repeated silica gel, ODS and Sephadex LH-20 column chromatographies. From the result of physico-chemical data including NMR, MS aud IR, the chemical structures of the compounds were determined as tormentic acid (1), myrianthic acid (2), hovenic acid (3) and 2${\alpha}$,3${\beta}$,19${\beta}$,23-tetrahydroxylolean-12-en-28-oic acid (4). Compounds 3 and 4 were isolated for the first time from this plant. All isolated compounds were evaluated for cytotoxic activity against human colon carcinoma cells using in vitro three-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, compound 3 showed a higher cytotoxicity ($IC_{50}$ = 7.8 ${\mu}M$) than doxorubicin ($IC_{50}$= 50 ${\mu}M$).

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