Synthesis, antiangiogenesis evaluation and molecular docking studies of 1-aryl-3-[(thieno[3,2-b]pyridin-7-ylthio)phenyl]ureas: Discovery of a new substitution pattern for type II VEGFR-2 Tyr kinase inhibitors
作者:Vera A. Machado、Daniela Peixoto、Raquel Costa、Hugo J.C. Froufe、Ricardo C. Calhelha、Rui M.V. Abreu、Isabel C.F.R. Ferreira、Raquel Soares、Maria-João R.P. Queiroz
DOI:10.1016/j.bmc.2015.08.010
日期:2015.10
The synthesis and biological evaluation of novel 1-aryl-3-[2-, 3- or 4-(thieno[3,2-b]pyridin-7-ylthio)phenyl]ureas 3, 4 and 5 as VEGFR-2 tyrosine kinase inhibitors, are reported. The 1-aryl-3-[3-(thieno[3,2-b]pyridin-7-ylthio)phenyl]ureas 4a-4h, with the arylurea in the meta position to the thioether, showed the lowest IC₅₀ values in enzymatic assays (10-206 nM), the most potent compounds 4d-4h (IC₅₀
新型1-芳基-3- [2-,3-或4-(噻吩并[3,2-b]吡啶-7-基硫基)苯基]脲3、4和5作为VEGFR-2酪氨酸的合成及生物学评价激酶抑制剂的报道。1-芳基-3- [3-(噻吩并[3,2-b]吡啶-7-基硫基]苯基)苯基]脲4a-4h,芳基脲位于硫醚的间位,在酶促反应中显示最低的IC₅₀值。检测(10-206 nM),最有效的化合物4d-4h(IC₅₀10-28 nM)在末端苯环中带有疏水基团(Me,F,CF 3和Cl)。基于以下因素同时存在:(1)硫醚连接子和(2)在间位的芳基脲部分,实现了作为II型VEGFR-2抑制剂的最有效化合物4的令人信服的合理化。对于化合物4,对人脐静脉内皮细胞(HUVEC)增殖具有明显的抑制作用(BrdU分析),在低浓度下观察到迁移(伤口愈合测定)和管形成。这些化合物还显示出使用TUNEL测定法增加细胞凋亡。通过Western印迹对总的和磷酸化的(活性