Eung Tae Yeon

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Two new 2-phenoxychromones 1 and 2 and two prenylflavonoids 3 and 4 along with 12 known compounds (5-16) were isolated from the CH2Cl2-soluble fraction of a methanol extract of Epimedium koreanum. Compounds 1, 4, 6, 7, 9, 10, 12, and 15 exhibit inhibitory effects on nitric oxide production with IC50 values ranging from 16.8 to 49.3 μM. Compounds 1, 4, 7,(More)
Three new neo-clerodane diterpenoids (1-3) along with 12 known compounds (4-15) were isolated from a methanol extract of the aerial parts of Scutellaria barbata. The structures of 1-3 were determined by interpretation of their 1D and 2D NMR spectroscopic data as well as HRESIMS values. All isolated compounds were tested for their inhibitory effects on(More)
The Maillard Reaction Products (MRPs) are chemical compounds which have been known to be effective in chemoprevention. Death receptors (DR) play a central role in directing apoptosis in several cancer cells. In our previous study, we demonstrated that (E)-2,4-bis(p-hydroxyphenyl)-2-butenal, a MRP product, inhibited human colon cancer cell growth by inducing(More)
A new dihydropyranocoumarin, (+)-cis-(3'S,4'S)-diisobutyrylkhellactone (1), together with five known compounds, 3'-senecioyl-4'-acetylkhellactone (2), 3'-isovaleryl-4'-acetylkhellactone (3), 3',4'-disenecioylkhellactone (4), 3'-isovaleryl-4'-senecioylkhellactone (5), and 3',4'-diisovalerylkhellactone (6), was isolated from Glehnia littoralis. Their chemical(More)
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