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Cytosolic phospholipase A2α (cPLA2α) and fatty acid amide hydrolase (FAAH) are enzymes that have emerged as attractive targets for the development of analgesic and anti-inflammatory drugs. We recently reported that 1-[3-(4-octylphenoxy)-2-oxopropyl]indole-5-carboxylic acid (5) is a dual inhibitor of cPLA2α and FAAH. Structure-activity relationship studies revealed that substituents at the indole 3- and 5-positions and replacement of the indole scaffold of this compound by other heterocycles strongly influences the inhibitory potency against cPLA2α and FAAH, respectively. Herein we report the effect of variation of the 4-octyl residue of 5 and an exchange of its carboxylic acid moiety by some bioisosteric functional groups. Several of the compounds assayed were favorably active against both enzymes, and could therefore represent agents with improved analgesic and anti-inflammatory qualities in comparison with selective cPLA2 α and FAAH inhibitors. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Stefan Zahov, Andreas Drews, Mark Hess, Alwine Schulze Elfringhoff, Matthias Lehr. 1-(3-biaryloxy-2-oxopropyl)indole-5-carboxylic acids and related compounds as dual inhibitors of human cytosolic phospholipase A2α and fatty acid amide hydrolase. ChemMedChem. 2011 Mar 7;6(3):544-9

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PMID: 21259444

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