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  • Title: 3D-QSAR, synthesis, and antimicrobial activity of 1-alkylpyridinium compounds as potential agents to improve food safety.
    Author: Rodríguez-Morales S, Compadre RL, Castillo R, Breen PJ, Compadre CM.
    Journal: Eur J Med Chem; 2005 Sep; 40(9):840-9. PubMed ID: 16194718.
    Abstract:
    Cetylpyridinium chloride (CPC), an alkylpyridinium compound has been recently approved by the US Food and Drug Administration to reduce bacterial contamination in poultry. Although CPC is very effective and has a very good safety record, its relatively high lipophilicity may limit its use in high fat containing foods such as beef. In this study we present the CoMFA analysis (3D-QSAR) of the antimicrobial activity of 60 N-alkylpyridinium compounds against different bacteria. CoMFA contours showed that the activity is highly influenced by the steric factor. Based in these contours we designed new candidates, which were synthesized and characterized by spectroscopic data. MIC activity over Gram positive and Gram negative microorganisms validated the 3D-QSAR study.
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