Investigations on the 4-quinolone-3-carboxylic acid motif. 4. Identification of new potent and selective ligands for the cannabinoid type 2 receptor with diverse substitution patterns and antihyperalgesic effects in mice.

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Pasquini S, De Rosa M, Pedani V, Mugnaini C, Guida F, Luongo L, De Chiaro M, Maione S, Dragoni S, Frosini M, Ligresti A, Di Marzo V, Corelli F

Investigations on the 4-quinolone-3-carboxylic acid motif. 4. Identification of new potent and selective ligands for the cannabinoid type 2 receptor with diverse substitution patterns and antihyperalgesic effects in mice.

J Med Chem. 2011 Aug 11;54(15):5444-53. doi: 10.1021/jm200476p. Epub 2011 Jul 6.

PubMed ID

21702498 [ View in PubMed

]

Abstract

Experimental evidence suggests that selective CB2 receptor modulators may provide access to antihyperalgesic agents devoid of psychotropic effects. Taking advantage of previous findings on structure-activity/selectivity relationships for a class of 4-quinolone-3-carboxamides, further structural modifications of the heterocyclic scaffold were explored, leading to the discovery of the 8-methoxy derivative 4a endowed with the highest affinity and selectivity ever reported for a CB2 ligand. The compound, evaluated in vivo in the formalin test, behaved as an inverse agonist by reducing at a dose of 6 mg/kg the second phase of the formalin-induced nocifensive response in mice.

DrugBank Data that Cites this Article

Binding Properties

Drug	Target	Property	Measurement	pH	Temperature (°C)
Rimonabant	Cannabinoid receptor 1	Ki (nM)	12	N/A	N/A	Details