• Title/Summary/Keyword: Dong-jin Park

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Analysis of DA-6034. a New Flavonoid Derivative in Biological Fluids by Fluorescence Detector

  • Jang, Ji-Myun;Park, Kyung-Jin;Lee, Jong-Jin;Kim, Dong-Goo;Shim, Hyun-Joo;Son, Mi-Won;Kim, Dong-Sung;Kim, Soon-Hoe;Yoo, Moo-Hi
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.403.2-403.2
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    • 2002
  • A high performance liquid chromatographic method was developed for the determination of DA-6034 in biological fluids using fluorescence detector. The method involved deproteinization of biological sample with the same volume of acetonitrile, 0.2M zinc sulphate. and 0.15M barium hydroxide. The aliquot of supernatant was injected onto Nova-pak C18 column and detected by fluorescence detector. Emission and excitation wavelength of detector were 336nm and 440nm. (omitted)

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Synthesis of Amide from Thioamide by Treatment of SiO2 or SeO2

  • Jung, Dai-Il;Lee, Jin-A;Lee, Do-Hun;Kwak, Moon-Jung;Lee, Soo-Jin;Park, You-Mi;Park, Soon-Kyu;Kim, Hyun-Sook
    • Journal of Life Science
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    • v.9 no.2
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    • pp.49-51
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    • 1999
  • Reactions of 2,6-Lutidine with active methyl group anilines in the presence of sulfur gave the desired thioamides 1. Reactions of synthesized thioamides 1 with sulfur and SiO2 or SeO2 gave the corresponding amide 2. We now report conversion of thioamide to amide by using oxidzing inorganic reagant