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    Tran Minh Hung

    AbstractTwo new flavonoid glycosides (I) and (II) are isolated along with eleven known compounds.
    Biomolecular recognition has been playing an important role in health care, pharmaceutical industry, environmental analysis, and broad biotechnology applications. In these cases, the detection of specific interactions between two... more
    Biomolecular recognition has been playing an important role in health care, pharmaceutical industry, environmental analysis, and broad biotechnology applications. In these cases, the detection of specific interactions between two bio-logical molecules with affinity to each other is ...
    A new coumarin derivative, coumacasia (1) and eight known compounds, coumarin (2), cinnamaldehyde (3), 2-methoxycinnamaldehyde (4), 2-hydroxycinnamaldehyde (5), coniferaldehyde (6), cinnamic acid (7), 2-hydroxycinnamic acid (8), and... more
    A new coumarin derivative, coumacasia (1) and eight known compounds, coumarin (2), cinnamaldehyde (3), 2-methoxycinnamaldehyde (4), 2-hydroxycinnamaldehyde (5), coniferaldehyde (6), cinnamic acid (7), 2-hydroxycinnamic acid (8), and cinnamic alcohol (9), were isolated from the methanol extract of Cinnamomum cassia. Their structures were elucidated by spectral data and by comparison with the reported literature. The cytotoxic activities of compounds 1-9 were evaluated with two human cancer cell lines, HL-60 and A-549. Compound 1 showed growth inhibitory effects in the HL-60 and A-549 cell lines with IC50 values of 8.2 +/- 0.5 and 11.3 +/- 1.1 microM, respectively. Compounds 3-6, and 8 exhibited moderate cytotoxicity with IC50 values ranging from 20.5 to 65.6 microM.
    ABSTRACT
    Three new phenolics:…
    Five flavonoids,... more
    Five flavonoids, myricetin-3'-methylether 3-O-β-D: -galactopyranoside (1), myricetin-3',5'-dimethylether 3-O-β-D: -galactopyranoside (2), quercetin (3), kaempferol (4), and tamarixetin (5) were isolated from the buds of Cleistocalyx operculatus (Myrtaceae). The chemical structures of these compounds were determined on the basis of spectroscopic analyses, including 2D NMR. Their anti-Alzheimer effects were evaluated via acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity assays. All five compounds 1-5 showed potential inhibitory activities against AChE with IC(50) values of 19.9, 37.8, 25.9, 30.4 and 22.3 μM, respectively, while compounds 1, 3, 4 and 5 also possessed BChE inhibitory activity with IC(50) values of 152.5, 177.8, 62.5, and 160.6 μM, respectively.
    Page 1. 2392 Bull. Korean Chem. Soc. 2010, Vol. 31, No. 8 Notes DOI 10.5012/bkcs.2010.31. 8.2392 Flavonoids from Cleistocalyx operculatus Buds and their Cytotoxic Activity Byung Sun Min,* To Dao Cuong, Joo-Sang Lee, Mi Hee Woo, and Tran... more
    Page 1. 2392 Bull. Korean Chem. Soc. 2010, Vol. 31, No. 8 Notes DOI 10.5012/bkcs.2010.31. 8.2392 Flavonoids from Cleistocalyx operculatus Buds and their Cytotoxic Activity Byung Sun Min,* To Dao Cuong, Joo-Sang Lee, Mi Hee Woo, and Tran Manh Hung ...

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