Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/6145
Title: Investigations on the 4-quinolone-3-carboxylic acid motif part 5: modulation of the physicochemical profile of a set of potent and selective cannabinoid-2 receptor ligands through a bioisosteric approach.
Authors: Mugnaini, Claudia 
Nocerino, S.
Pedani, Valentina
Pasquini, Serena
Tafi, Andrea 
De Chiaro, M.
Bellucci, L.
Valoti, Massimo
Guida, F.
Luongo, L.
Dragoni, Stefania
Ligresti, A.
Rosenberg, A.
Bolognini, D.
Cascio, M. G.
Pertwee, R. G.
Moaddel, R.
Maione, S.
Di Marzo, V.
Corelli, Federico 
Issue Date: 2012
Project: None 
Journal: CHEMMEDCHEM
Abstract: 
Three heterocyclic systems were selected as potential bioisosteres of the amide linker for a series of 1,6-disubstituted-4-quinolone-3-carboxamides, which are potent and selective CB2 ligands that exhibit poor water solubility, with the aim of improving their physicochemical profile and also of clarifying properties of importance for amide bond mimicry. Among the newly synthesized compounds, a 1,2,3-triazole derivative (1-(adamantan-1-yl)-4-[6-(furan-2-yl)-1,4-dihydro-4-oxo-1-pentylquinolin-3-yl]-1H-1,2,3-triazole) emerged as the most promising in terms of both physicochemical and pharmacodynamic properties. When assayed in vitro, this derivative exhibited inverse agonist activity, whereas, in the formalin test in mice, it produced analgesic effects antagonized by a well-established inverse agonist. Metabolic studies allowed the identification of a side chain hydroxylated derivative as its only metabolite, which, in its racemic form, still showed appreciable CB2 selectivity, but was 150-fold less potent than the parent compound.
Description: 
42285
URI: http://hdl.handle.net/20.500.12779/6145
ISSN: 1860-7179
DOI: 10.1002/cmdc.201100573
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