[EN] AGENTS FOR USE IN THE TREATMENT OF CARDIOVASCULAR AND INFLAMMATORY DISEASES STRUCTURALLY BASED ON 4(1 H)-QUINOLONE<br/>[FR] AGENTS DESTINÉS À ÊTRE UTILISÉS DANS LE TRAITEMENT DE MALADIES CARDIOVASCULAIRES ET INFLAMMATOIRES AYANT UNE STRUCTURE BASÉE SUR LA 4(1H)-QUINOLONE
申请人:UCL BUSINESS PLC
公开号:WO2015189560A1
公开(公告)日:2015-12-17
The present invention provides a compound of formula I, a tautomer thereof, or a pharmaceutically acceptable salt or N-oxide thereof for use in the treatment or prevention of a cardiovascular disease or of an inflammatory disease or condition:
The labelling reagent 2-[18F]fluoroethylazide was used in a traceless Staudinger ligation. This reaction was employed to obtain the GABAA receptor binding 6-benzyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid (2-[18F]fluoroethyl) amide. The radiotracer was prepared with a non-decay corrected radiochemical yield of 7%, a radiochemical purity >95% and a specific radioactivity of 0.9 GBq/μmol. The compound
Human immunodeficiency virus type 1 (HIV-1) integrase is a crucial target for antiretroviral drugs, and several keto-enol acid class (often referred to as diketo acid class) inhibitors have clinically exhibited marked antiretroviral activity. Here, we show the synthesis and the detailed structure-activity relationship of the quinolone carboxylic acids as a novel monoketo acid class of integrase inhibitors. 6-(3-Chloro-2-fluorobenzyl)- 1-((2,S)-1-hydroxy-3,3-dimethylbutan-2-yl)-7-methoxy-4-oxo- 1,4-dihydroquinoline-3-carboxylic acid 51, which showed an IC50 of 5.8 nM in the strand transfer assay and an ED50 of 0.6 nM in the antiviral assay, and 6-(3-chloro-2-fluorobenzyl)-1-((2S)-1-hydroxy-3-methylbutan-2-yl)-7-methoxy-4-oxo-4-dihydroquinoline-3-carboxylic acid 49, which had an IC50 of 7.2 nM and an ED50 of 0.9 nM, were the most potent compounds in this class. The monoketo acid 49 was much more potent at inhibiting integrase-catalyzed strand transfer processes than 3'-processing reactions, as is the case with the keto-enol acids. Elvitegravir 49 was chosen as a candidate for further studies and is currently in phase 3 clinical trials.
4-Quinolone Derivatives: High-Affinity Ligands at the Benzodiazepine Site of Brain GABA<sub>A</sub> Receptors. Synthesis, Pharmacology, and Pharmacophore Modeling
The 3-ethoxycarbonyl-4-quinolone compound I 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.
Ruthenium arene complexes as HIV-1 integrase strand transfer inhibitors
作者:Mauro Carcelli、Alessia Bacchi、Paolo Pelagatti、Gabriele Rispoli、Dominga Rogolino、Tino W. Sanchez、Mario Sechi、Nouri Neamati
DOI:10.1016/j.jinorgbio.2012.09.021
日期:2013.1
The quinolone HL1 and the hydroxypyrimidine-carboxamide HL2 were designed and synthesized as models of the HIV integrase strand transfer inhibitors Elvitegravir and Raltegravir (brand name Isentress), with the aim to study their complexing behavior and their biological activity. The Ru(arene) complexes [RuCl(eta(6)-p-cym)L-1], [RuCl(eta(6)-p-cym)L-2] and [RuCl(hexamethylbenzene)(L)2] were also synthesized and spectroscopically characterized and their X-ray diffraction structures were discussed. The ligands and the complexes showed inhibition potency in the sub/low-micromolar concentration range in anti-HIV-1 integrase enzymatic assays, with selectivity toward strand transfer catalytic process, without any significant cytotoxicity on cancer cells. (C) 2012 Elsevier Inc. All rights reserved.