Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, USA.
Bioorg Med Chem. 2012 Jan 15;20(2):910-4. doi: 10.1016/j.bmc.2011.11.058. Epub 2011 Dec 8.
Six novel N(4)-substitutedphenyl-6-substitutedphenylmethyl-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamines were synthesized as multiple receptor tyrosine kinase (RTK) inhibitors and antitumor agents. An improvement in the inhibitory potency against epidermal growth factor receptor (EGFR), vascular endothelial growth factor receptor 1 (VEGFR-1) and vascular endothelial growth factor receptor 2 (VEGFR-2) assays and in the A431 cellular proliferation assay was observed for compounds 8-13 over the previously reported 5-7. Three compounds (8, 9 and 13) demonstrated potent, multiple RTK inhibition and were more potent or equipotent compared to the lead compounds 5 and 7 and the standard compounds. Compounds 10 and 12 showed potent inhibition of VEGFR-2 over EGFR, platelet-derived growth factor receptor-β (PDGFR-β) and VEGFR-1. The results indicate that the RTK inhibitory profile could be modulated with slight variations to the N(4)-aryl-6-substitutedphenylmethyl-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamino scaffold.
六位新型 N(4)-取代苯基-6-取代苯基甲基-7H-吡咯并[2,3-d]嘧啶-2,4-二胺作为多受体酪氨酸激酶(RTK)抑制剂和抗肿瘤剂被合成。与之前报道的 5-7 相比,化合物 8-13 在表皮生长因子受体(EGFR)、血管内皮生长因子受体 1(VEGFR-1)和血管内皮生长因子受体 2(VEGFR-2)测定中对 EGFR、VEGFR-1 和 VEGFR-2 的抑制活性以及在 A431 细胞增殖测定中均有提高。三种化合物(8、9 和 13)表现出强大的、多 RTK 抑制作用,与先导化合物 5 和 7 以及标准化合物相比,其活性更高或相当。化合物 10 和 12 对 VEGFR-2 的抑制作用强于 EGFR、血小板衍生生长因子受体-β(PDGFR-β)和 VEGFR-1。结果表明,通过对 N(4)-芳基-6-取代苯基甲基-7H-吡咯并[2,3-d]嘧啶-2,4-二氨基支架进行微小的变化,可调节 RTK 抑制谱。