Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/43225
Title: Investigations on the 4-Quinolone-3-carboxylic Acid Motif. 2. Synthesis and Structure-Activity Relationship of Potent and Selective Cannabinoid-2 Receptor Agonists Endowed with Analgesic Activity in Vivo
Authors: PASQUINI SERENA
botta, lorenzo 
SEMERARO TERESA
MUGNAINI CLAUDIA
LIGRESTI ALESSIA
PALAZZO ENZA
MAIONE SABATINO
DI MARZO VINCENZO
CORELLI FEDERICO
Journal: JOURNAL OF MEDICINAL CHEMISTRY 
Issue Date: 2008
Abstract: 
A set of quinolone-3-carboxamides 11 bearing at position 5, 6, 7, or 8 diverse substituents, such as halides, alkyl, aryl, alkoxy, and aryloxy groups, differing for their steric/electronic properties, was prepared. The new compounds were tested in vitro for CB1 and CB2 receptor affinity in comparison with the reference compounds rimonabant and SR144528. The tested compounds exhibited CB2 affinity in the range 55.9 nM to 0.8 nM, and CB1 affinity in the range >10,000 nM to 5.3 nM, with selectivity indeces [Ki(CB1)/Ki(CB2)] varying from >2,666.6 to 1.23. Based on the structure-selectivity relationship developed, the presence of a substituent at C6/C8 or C7 well accounts for the high or low CB2 selectivity, respectively. Compound 11c, characterized by high CB2 affinity and selectivity showed analgesic activity in the formalin test of acute peripheral and inflammatory pain in mice, as a result of selective CB2 agonistic activity.
URI: http://hdl.handle.net/2067/43225
ISSN: 0022-2623
DOI: 10.1021/jm800552f
Rights: Attribution-NonCommercial-ShareAlike 3.0 United States
Appears in Collections:A1. Articolo in rivista

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