• metalloporphyrins as cytochrome p450 models for chlorhexidine metabolite prediction

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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     the catalytic oxidation of chlorhexidine (chx, a strong microbicidal agent) mediated by ironporphyrins has been investigated by using hydrogen peroxide, mcpba, tbuooh, or naocl as oxidant. all of these oxygen donors yielded p-chloroaniline (pca) as the main product. the higher pca yields amounted to 71% in the following conditions: catalyst/oxidant/substrate molar ratio of 1:150:50, aqueous medium, fetmpyp as catalyst. the medium ph also had a strong effect on the pca yields; in physiological ph, formation of this product was specially favored in the presence of the catalysts, with yields 58% higher than those achieved in control reactions. this provided strong evidence that chx is metabolized to pca upon ingestion.

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