Twoseries of novel chromone derivatives were synthesized and investigated for their ability to inhibit the activity of monoamine oxidase. The SAR data indicate that chromone derivatives with substituents in position 3 of γ-pyrone nucleus act preferably as MAO-B inhibitors, with IC50 values in the nanomolar to micromolar range. Almost all chromone 3-carboxamides display selectivity toward MAO-B. Identical
合成了两种新的色酮衍生物,并研究了它们抑制单胺氧化酶活性的能力。SAR数据表明,在γ-吡喃酮核的3位具有取代基的色酮衍生物优选用作MAO-B抑制剂,IC 50值在纳摩尔至微摩尔范围内。几乎所有色酮3-羧酰胺均显示出对MAO-B的选择性。上在两种同种型(色酮类的活性完全丧失的γ吡喃酮核结果2位置是相同的取代2 - 12除了3和5)。显色酮(19)表现出MAO-B IC 50具有63 nM的选择性,是MAO-A的1000倍以上,并且具有拟可逆性抑制剂的作用。对接活性最高的化合物的MAO结合的实验突出显示了同工型A和B之间的不同相互作用方式。色酮异构体之间的溶剂化作用的差异分析提供了有关3取代色酮衍生物优越轮廓的更多见解。
In search for new chemical entities as adenosine receptor ligands: Development of agents based on benzo-γ-pyrone skeleton
作者:Alexandra Gaspar、Joana Reis、Maria João Matos、Eugenio Uriarte、Fernanda Borges
DOI:10.1016/j.ejmech.2012.05.033
日期:2012.8
A selected series of chromone carboxamides synthesized in our laboratory were evaluated by radioligand binding studies towards adenosine receptors. All the chromone-3-carboxamides (compounds 8-12) exhibit A(2B) receptor displacement percentage superior to 50%. The best results were obtained with phenolic substituents (compounds 9 and 12) in the position 3 of pyrone ring with a K-i value of 2890 and 1350 nM. In addition, the predicted ADME properties for the chromone carboxamides under study are in accordance with the general requirements for the drug discovery and development process and in turn they have potential to emerge as a drug candidate.In summary, N-phenylchromone-3-carboxamide may be proposed as a promising scaffold that can undergo optimization as a selective A(2B)AR antagonist given its lower affinity for A(1)AR and A(2A)AR. Accordingly, one can propose this new chromone class as a promising scaffold for tackling adenosine receptors, namely of A(2B) subtype. (C) 2012 Elsevier Masson SAS. All rights reserved.
[EN] CHROMONE DERIVATIVES FOR USE AS ANTIOXIDANTS/PRESERVATIVES<br/>[FR] DÉRIVÉS DE CHROMONE DESTINÉS À ÊTRE UTILISÉS COMME ANTI-OXYDANTS/CONSERVATEURS
申请人:UNIV DO PORTO
公开号:WO2008104925A1
公开(公告)日:2008-09-04
[EN] The current invention depicts the synthesis of new chromone amide derivatives placed at positions C2 and C3 of the chromone nucleus. The synthesised compounds possess the general formulas (I) and (II) as displayed below. This new compounds possessing different substitution patterns were obtained through a condensation reaction between 2- or 3 - carboxychromone and aniline (phenylamine) or its substituted derivatives in fairly good yields. The syntheses of the dihydroxylated compounds were performed by a demethylation reaction of the previously obtained monomethoxylated chromones. Some of these compounds possess a putative use as antioxidant/preservatives for pharmaceutical, cosmetic and/or food industries. [FR] La présente invention porte sur la synthèse de nouveaux dérivés de chromone amide placés dans les positions C2 et C3 du noyau chromone. Les composés synthétisés possèdent des formules générales A et B telles que présentées ci-après. Ces nouveaux composés possédant différents motifs de substitution ont été obtenus par une réaction de condensation entre la 2- ou 3-carboxychromone et l'aniline (phénylamine) ou ses dérivés substitués dans des rendements assez bons. Les synthèses des composés dihydroxylés ont été effectuées par une réaction de déméthylation des chromones monométhoxylées préalablement obtenues. Les industries pharmaceutiques, cosmétiques et/ou alimentaires utilisent quelques-uns de ces composés comme anti-oxydants/conservateurs présumés.
Discovery of novel A3 adenosine receptor ligands based on chromone scaffold
has been developed. Accordingly, twoseries of novel chromone carboxamides placed at positions C2 (compounds 2-13) and C3 (compounds 15-26) of the gamma-pyrone ring were synthesized using chromone carboxylic acids (compounds 1 or 14) as starting materials. From this study and on the basis of the obtained structure-activity relationships it was concluded that the chromone carboxamide scaffold represent