2-Aminopyrimidines as dual adenosine A1/A2A antagonists
摘要:
In this study thirteen 2-aminopyrimidine derivatives were synthesised and screened as potential antagonists of adenosine A(1) and A(2A) receptors in order to further investigate the structure activity relationships of this class of compounds. 4-(5-Methylfuran-2-yl)-6[3-(piperidine-1-carbonyl)phenyl] pyrimidin-2-amine (8m) was identified as a compound with high affinities for both receptors, with an A(2A)Ki value of 6.34 nM and an A(1)Ki value of 9.54 nM. The effect of selected compounds on the viability of cultured cells was assessed and preliminary results indicate low cytotoxicity. In vivo efficacy at A(2A) receptors was illustrated for compounds 8k and 8m since these compounds attenuated haloperidol-induced catalepsy in rats. A molecular docking study revealed that the interactions between the synthesised compounds and the adenosine A2A binding site most likely involve Phe168 and Asn253, interactions which are similar for structurally related adenosine A(2A) receptor antagonists. (C) 2015 Elsevier Masson SAS. All rights reserved.
Selected furanochalcones as inhibitors of monoamine oxidase
作者:Sarel J. Robinson、Jacobus P. Petzer、Anél Petzer、Jacobus J. Bergh、Anna C.U. Lourens
DOI:10.1016/j.bmcl.2013.06.050
日期:2013.9
The validity of the chalcone scaffold for the design of inhibitors of monoamineoxidase has previously been illustrated. In a systematic attempt to investigate the effect of heterocyclic substitution on the monoamineoxidase inhibitory properties of this versatile scaffold, a series of furanochalcones were synthesized. The results demonstrate that these furan substituted phenylpropenones exhibited
查尔酮支架在设计单胺氧化酶抑制剂中的有效性已在前面进行了说明。为了系统地研究杂环取代对这种多功能支架的单胺氧化酶抑制特性的影响,合成了一系列呋喃并呋喃酮。结果表明,这些呋喃取代的苯基丙烯酮对MAO-B表现出中等至良好的抑制活性,但对MAO-A酶的抑制作用弱或没有抑制作用。活性最高的化合物2 E -3-(5-氯呋喃-2-基)-1-(3-氯苯基)丙-2-烯-1-酮的IC 50为抑制MAO-B的值为0.174μM,抑制MAO-A的值为28.6μM。有趣的是,与先前报道的有关查耳酮的数据相反,这些呋喃取代的衍生物起着可逆抑制剂的作用,而动力学分析显示了一种竞争性的结合方式。
Studies of NMR Chemical Shifts of Chalcone Derivatives of Five‐membered Monoheterocycles and Determination of Aromaticity Indices
作者:Eun Jeong Jeong、In‐Sook Han Lee
DOI:10.1002/bkcs.11749
日期:2019.7
(E)‐1‐heteroaryl‐3‐arylpropen‐1‐ones. The 13C chemicalshift values (δC) of the chalcone derivatives were determined in order to find if they correlated with the Hammett σ values. A good correlation, especially for the β‐C for both series, was found for the 13C chemicalshift values (δC) of the chalcone derivatives with the Hammett σ values. The chemicalshift values of the β‐C of the heterocyclic compounds
2-Aminopyrimidines as dual adenosine A1/A2A antagonists
作者:Sarel J. Robinson、Jacobus P. Petzer、Gisella Terre’Blanche、Anél Petzer、Mietha M. van der Walt、Jacobus J. Bergh、Anna C.U. Lourens
DOI:10.1016/j.ejmech.2015.09.035
日期:2015.11
In this study thirteen 2-aminopyrimidine derivatives were synthesised and screened as potential antagonists of adenosine A(1) and A(2A) receptors in order to further investigate the structure activity relationships of this class of compounds. 4-(5-Methylfuran-2-yl)-6[3-(piperidine-1-carbonyl)phenyl] pyrimidin-2-amine (8m) was identified as a compound with high affinities for both receptors, with an A(2A)Ki value of 6.34 nM and an A(1)Ki value of 9.54 nM. The effect of selected compounds on the viability of cultured cells was assessed and preliminary results indicate low cytotoxicity. In vivo efficacy at A(2A) receptors was illustrated for compounds 8k and 8m since these compounds attenuated haloperidol-induced catalepsy in rats. A molecular docking study revealed that the interactions between the synthesised compounds and the adenosine A2A binding site most likely involve Phe168 and Asn253, interactions which are similar for structurally related adenosine A(2A) receptor antagonists. (C) 2015 Elsevier Masson SAS. All rights reserved.