这项研究描述了一系列新型取代的1-(氨基甲基)-2-(芳基乙酰基)-1,2,3,4-四氢异喹啉的合成,并讨论了它们对阿片受体的结合亲和力与它们的结构活性关系(SAR)。抗伤害感受力作为生物活性的指标。在异喹啉核的5位上引入羟基取代基产生了一种化合物40,其效力比抗伤害感受的小鼠模型中先前公开的未取代类似物39强2倍。对5-取代基的QSAR分析清楚地表明,抗伤害感受活性与取代基的亲脂性成反比。与未取代的异喹啉39相比,本文所述的取代化合物对κ阿片受体的选择性较低。5-羟基取代的化合物59对kappa阿片受体具有很高的亲和力(Ki kappa = 0.09 nM),Ki mu / Ki kappa之比仅为5。但是,多元线性回归分析表明,抗伤害性与对μ阿片样物质受体的亲和力。另一方面,对κ阿片受体的结合亲和力与抗伤害感受活性之间的相关性具有统计学意义。
Synthesis of a small library of phenylalkylamide derivatives as melatoninergic ligands for human mt 1 and MT 2 receptors
作者:Cécile Pégurier、Sophie Curtet、Jean-Paul Nicolas、Jean A. Boutin、Philippe Delagrange、Pierre Renard、Michel Langlois
DOI:10.1016/s0968-0896(99)00285-0
日期:2000.1
108 compounds was then synthesised from 12 arylalkyl amines and nine carboxylic acids. The compound mixtures were evaluated on chicken brain melatonin and recombinant human mt1 and MT2 receptors. Deconvolution of the most potent mixture demonstrated the superiority of 3-methoxy and 2,5-dimethoxy substitution on the phenyl ring with isopropyl, propyl and ethyl amido chains. Several compounds with nanomolar
3-Aroylmethylene-2,3,6,7-tetrahydro-1<i>H</i>-pyrazino[2,1-<i>a</i>]isoquinolin-4(11b<i>H</i>)-ones as Potent Nrf2/ARE Inducers in Human Cancer Cells and AOM-DSS Treated Mice
Nrf2-mediated activation of ARE regulates expression of cytoprotective enzymes against oxidative stress, inflammation, and carcinogenesis. We have discovered a novel structure (1) as an ARE inducer via luciferase reporter assay to screen the in-house database of our laboratory. The potency of 1 was evaluated by the expression of NQO-1, HO-1, and nuclear translocation of Nrf2 in HCT116 cells. In vivo potency of 1 was studied using AOM-DSS models, showing that the development of colorectal adenomas was significantly inhibited. Administration with 1 lowered the expression of IL-6, IL-1 beta, and promoted Nrf2 nuclear translocation. These results indicated that 1 is a potent Nrf2/ARE activator, both in vitro and in vivo. Forty-one derivatives were synthesized for SAR study, and a more potent compound 17 was identified. To our knowledge, this is a potent ARE activator. Besides, its novel structure makes it promising for further optimization.