Chemical Biology and Drug Design p. 659 - 668 (2014)
Update date:2022-08-02
Topics:
Zhang, Ming-Xia
Zhu, Chun-Feng
Zhou, Ying-Jun
Kong, Xiao-Le
Hider, Robert C.
Zhou, Tao
A range of hexadentate 3-hydroxypyridin-4-ones (HPOs) with high affinity for iron(III) has been synthesized. The log stability constants of two HPO-iron complexes (logK1) were determined to be over 34, and pFe values of the two HPOs were determined to be over 31. Antimicrobial assay indicated that they are able to markedly inhibit the growth of both Gram-positive and Gram-negative bacteria. Compounds 14a and 14e were found to exhibit the strongest inhibitory activity against Staphyloccocus aureus, Bacillus subtilis, Pseudomonas aeruginosa, and Escherichia coli, with MIC values of 8, 8, 16, and 8 lg/mL, respectively. These results indicate that hexadentate 3-hydroxypyridin-4-ones have potential application as antimicrobial agents, especially in the treatment of wound infection.
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