Compounds 4a-j and 5 were synthesized by cyclocondensation of 3a-j and hydrazine and showed significant LDL-antioxidant activities in the TBARS assay, the lag time of conjugated diene production, the relative electrophoretic mobility (REM) of ox-LDL, the apoB-100 fragmentation, and the macrophage-mediated LDL oxidation. Among compounds 4a-j and 5, 4a was found to be the most active compound as an inhibitor of LDL oxidation and 4a (IC50 = 0.1 microM) was 6-fold more potent than probucol (IC50 = 0.6 microM) in the TBARS assay.
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| http://dx.doi.org/10.1016/j.bmcl.2004.03.072 | DOI Listing |
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