Structure-activity relationships of 2-arylquinazolin-4-ones as highly selective and potent inhibitors of the tankyrases
作者:Amit Nathubhai、Teemu Haikarainen、Penelope C. Hayward、Silvia Muñoz-Descalzo、Andrew S. Thompson、Matthew D. Lloyd、Lari Lehtiö、Michael D. Threadgill
DOI:10.1016/j.ejmech.2016.04.041
日期:2016.8
Tankyrases (TNKSs), members of the PARP (Poly(ADP-ribose)polymerases) superfamily of enzymes, have gained interest as therapeutic drug targets, especially as they are involved in the regulation of Wnt signalling. A series of 2-arylquinazolin-4-ones with varying substituents at the 8-position was synthesised. An 8-methyl group (compared to 8-H, 8-OMe, 8-OH), together with a 4′-hydrophobic or electron-withdrawing
Tankyrases (TNKSs) 是 PARP(聚(ADP-核糖)聚合酶)酶超家族的成员,作为治疗药物靶点引起了人们的兴趣,特别是因为它们参与 Wnt 信号传导的调节。合成了一系列在 8 位具有不同取代基的 2-芳基喹唑啉-4-酮。8-甲基(与 8-H、8-OMe、8-OH 相比)与 4'-疏水或吸电子基团一起对 TNKS 提供了最大的效力和选择性。所选化合物与 TNKS-2 的共晶结构表明,与 PARP-1/2 相比,TNKS-2 中 8 位附近的蛋白质更具疏水性,从而使选择性合理化。NAD +-结合位点包含容纳 2-芳基的疏水腔;在 TNKS-2 中,它有一条通往外部的隧道,但在 PARP-1 中空腔是封闭的。8-Methyl-2-(4-trifluoromethylphenyl)quinazolin-4-one 被确定为 TNKSs 和 Wnt 信号传导的有效和选择性抑制剂。这种