Design, synthesis and pharmacological evaluation of N-(5-chloro-2,4-dihydroxybenzoyl)-(R)-N-arylmethyl-1,2,3,4-tetrahydro-3-isoquinolinecarboxamides as potent Hsp90 inhibitors
作者:Chuanpeng Liang、Xingkang Wu、Zhenyu Li、Jing Zhu、Chunhua Lu、Yuemao Shen
DOI:10.1016/j.ejmech.2017.11.013
日期:2018.1
substitutions influenced their antiproliferative activities obviously, with the para-pyridyl group (41) outperforming all other substitution patterns. In this regard, compound 41 was selected for further evaluation. CETSA melt and ITDRFCETSA (isothermal dose-response fingerprint) curves for Hsp90α further proved that 41 interacted with intracellular Hsp90α powerfully. Compared with the lead compound 1, docking
使用不同的芳基甲基取代铅Hsp90抑制剂1(N-(5-氯-2,4-二羟基苯甲酰基)-(R)-N-苄基-1,2,3,4-四氢-3-异喹啉甲酰胺),已开发出三十四种衍生物(10 – 43),并表现出改善的Hsp90抑制和抗增殖活性。SAR分析表明,东南芳基取代明显影响了它们的抗增殖活性,对-吡啶基(41)的表现优于所有其他取代方式。在这方面,选择化合物41作进一步评估。CETSA熔体和ITDRF CETSAHsp90α的(等温剂量反应指纹图谱)曲线进一步证明了41与细胞内Hsp90α产生了强大的相互作用。与铅化合物1相比,Hsp90α- 41配合物的对接和MD精炼显示Tyr139的侧链与41的吡啶部分之间具有良好的H键相互作用,这是首次用于间苯二酚基Hsp90抑制剂。具有广谱抗肿瘤活性,化合物41在人乳腺癌MDA-MB-453细胞系上诱导了时间和剂量依赖性的生长抑制和G0 / G1细胞周期停滞