4-Quinolone Derivatives: High-Affinity Ligands at the Benzodiazepine Site of Brain GABAA Receptors. Synthesis, Pharmacology, and Pharmacophore Modeling

Autor: Elsebet Ø. Nielsen, Erik Lager, Pierre Andersson, Ingrid Pettersson, Jakob Nilsson, Olov Sterner, M. Nielsen, Tommy Liljefors
Rok vydání: 2006
Předmět:
Zdroj: Journal of Medicinal Chemistry. 49:2526-2533
ISSN: 1520-4804
0022-2623
DOI: 10.1021/jm058057p
Popis: The 3-ethoxycarbonyl-4-quinolone compound 1 has previously been identified via a database search as an interesting lead compound for ligand binding at the benzodiazepine site of GABA(A) receptors (Kahnberg et al. J. Mol. Graphics Modelling 2004, 23, 253-261). Pharmacophore-guided optimization of this lead compound yielded a number of high-affinity ligands for the benzodiazepine site including compounds 20 and 23-25 displaying sub-nanomolar affinities. A few of the compounds have been tested on the alpha(1)beta(2)gamma(2S) and alpha(3)beta(2)gamma(2S) GABA(A) receptor subtypes, and two of the compounds (5 and 19) display selectivity for alpha(1)- versus alpha(3)-containing receptors by a factor of 22 and 27, respectively. This selectivity for alpha(1)beta(2)gamma(2S) is in the same range as that for the well-known alpha(1) subunit selective compound zolpidem.
Databáze: OpenAIRE