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
作者:Serena Pasquini、Maria De Rosa、Valentina Pedani、Claudia Mugnaini、Francesca Guida、Livio Luongo、Maria De Chiaro、Sabatino Maione、Stefania Dragoni、Maria Frosini、Alessia Ligresti、Vincenzo Di Marzo、Federico Corelli
DOI:10.1021/jm200476p
日期:2011.8.11
Experimental evidence suggests that selective CB2 receptor modulators may provide access to antihyperalgesic agents devoid of psychotropic effects. Talcing 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.