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J Med Chem. 2005 Mar 10;48(5):1596-609.

Structure-based design, synthesis, and study of potent inhibitors of beta-ketoacyl-acyl carrier protein synthase III as potential antimicrobial agents.

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Departments of Medicinal Chemistry, Protein Biochemistry and Structural Biology, Quorex Pharmaceuticals Inc., 1890 Rutherford Road, Suite 200, Carlsbad, CA 92008, USA.


Fatty acid biosynthesis is essential for bacterial survival. Components of this biosynthetic pathway have been identified as attractive targets for the development of new antibacterial agents. FabH, beta-ketoacyl-ACP synthase III, is a particularly attractive target, since it is central to the initiation of fatty acid biosynthesis and is highly conserved among Gram-positive and -negative bacteria. Small molecules that inhibit FabH enzymatic activity have the potential to be candidates within a novel class of selective, nontoxic, broad-spectrum antibacterials. Using crystallographic structural information on these highly conserved active sites and structure based drug design principles, a benzoylaminobenzoic acid series of compounds was developed as potent inhibitors of FabH. This inhibitor class demonstrates strong antibacterial activity against Gram-positive and selected Gram-negative organisms.

[Indexed for MEDLINE]

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