Synthesis and pharmacological evaluation of 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline derivatives as sigma-2 receptor ligands
作者:Yu-Tong Sun、Gui-Fei Wang、Yi-Qiu Yang、Fujun Jin、Yifei Wang、Xiao-Yang Xie、Robert H. Mach、Yun-Sheng Huang
DOI:10.1016/j.ejmech.2017.11.016
日期:2018.3
receptor and been used extensively as study tools in various tumor imaging and therapy. As a continuous effort, we have synthesized a new series of 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline derivatives and evaluated their affinities for both sigma-1 and sigma-2 receptors. Most of these newly developed analogs showed good to excellent binding affinities for sigma-2 receptor with no or low affinities for
越来越多的证据表明,sigma-2受体是一种生物标志物,在许多增殖性癌细胞中明显过量表达,而在正常细胞中则没有表达或表达很低。Sigma-2受体选择性配体已成功地用作研究其药理功能,肿瘤成像以及癌症治疗剂或佐剂的有价值的工具。6,7-二甲氧基-1,2,3,4-四氢异喹啉基烷基苯甲酰胺属于几类结构,对sigma-2受体显示出高亲和力和选择性,并已广泛用作各种肿瘤成像和治疗的研究工具。经过不断的努力,我们合成了一系列新的6,7-二甲氧基-1,2,3,4-四氢异喹啉衍生物,并评估了它们对sigma-1和sigma-2受体的亲和力。这些新近开发的类似物大多数对sigma-2受体表现出良好至极好的结合亲和力,而对sigma-1受体则没有或具有低亲和力。特别是化合物3b,3e,4b和4e展示了5-6 nM亲和力的K i值和对sigma-2受体的出色选择性。此外,这些类似物还显示出对人肝Huh-7肿瘤细