Synthesis and in vitro EGFR (ErbB1) tyrosine kinase inhibitory activity of 4-N-substituted 6-aryl-7H-pyrrolo[2,3-d]pyrimidine-4-amines
作者:Svein Jacob Kaspersen、Christopher Sørum、Veronica Willassen、Erik Fuglseth、Eli Kjøbli、Geir Bjørkøy、Eirik Sundby、Bård Helge Hoff
DOI:10.1016/j.ejmech.2011.10.012
日期:2011.12
5-aryl-pyrroles and 4-chloro-6-arylpyrrolopyrimidines. Aromatic substitution with benzylic amines was performed by conventional thermal substitution, and palladium catalysed coupling. The two methods resulted in similar yields, but the palladium coupling had the benefit of lower chemical consumption and reduced reaction times. Eight of the new compounds had IC50 values in the range of 2.8–9.0 nM. Four
一系列4- Ñ取代-6-芳基- 7 ħ吡咯并[2,3-d]嘧啶-4-胺已被合成,其特征在于和它们的测试在体外EGFR(的ErbB1)酪氨酸激酶抑制活性。该化合物由氰基乙酸乙酯和α-溴乙酰苯经2-氨基-3-乙氧基羰基-5-芳基-吡咯和4-氯-6-芳基吡咯并嘧啶制备。通过常规的热取代和钯催化的偶联进行苄基胺的芳香取代。两种方法的收率相近,但钯偶联具有降低化学药品消耗和缩短反应时间的优点。八个新化合物的IC 50值在2.8–9.0 nM的范围内。这些中的四个具有位于原本可能易于氧化代谢的位点的氟原子。6-芳基的结构变化表明抑制作用仅对该片段中的修饰敏感。然而,效价很大程度上取决于4-氨基芳族部分的结构,除氟以外的任何芳族取代都会降低其体外活性。使用HeLa细胞评估所选化合物的细胞EGFR内在化反应。三种氟化衍生物在抑制EGFR内在化方面具有显著作用。