New FAAH inhibitors based on 3-carboxamido-5-aryl-isoxazole scaffold that protect against experimental colitis

Growing evidence suggests a role for the endocannabinoid (EC) system, in intestinal inflammation and compounds inhibiting anandamide degradation offer a promising therapeutic option for the treatment of inflammatory bowel diseases. In this paper, we report the first series of carboxamides derivatives possessing FAAH inhibitory activities. Among them, compound 39 displayed significant inhibitory FAAH activity (IC50 = 0.088 μM) and reduced colitis induced by intrarectal administration of TNBS.

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