Three aminodi(hetero)arylamines were prepared via a palladium-catalyzed C-N Buchwald-Hartwig coupling of methyl 3-aminothieno[3,2-b]pyridine-2-carboxylate with different bromonitrobenzenes, followed by reduction of the nitro groups of the coupling products to the corresponding amino compounds. The aminodi(hetero)arylamines thus obtained were evaluated for their growth inhibitory effect on four human tumor cell lines MCF-7 (breast adenocarcinoma), A375-C5 (melanoma), NCI-H460 (non-small cell lung cancer) and HepG2 (hepatocellular carcinoma). The toxicity to non-tumor cells was also evaluated using a porcine liver primary cell culture (PLP1), established by us. The aminodi(hetero)arylamine with the NH2 group in the ortho position and an OMe group in the para position to the NH of the di(hetero)arylamine, is the most promising compound giving the lowest GI50 values (1.30–1.63 µM) in all the tested human tumor cell lines, presenting no toxicity to PLP1 at those concentrations. The effect of this compound on the cell cycle and induction of apoptosis was analyzed in the NCI-H460 cell line. It was observed that it altered the cell cycle profile causing a decrease in the percentage of cells in the G0/G1 phase and an increase of the apoptosis levels.
通过
钯催化
3-氨基噻吩并[3,2-b]
吡啶-2-
甲酸甲酯与不同
溴硝基苯的 C-N Buchwald-Hartwig 偶联,然后将偶联产物的硝基还原为相应的
氨基化合物,制备了三种
氨基二(杂)芳基胺。评估了由此获得的
氨基二(杂)芳基胺对四种人类肿瘤
细胞系 MCF-7(乳腺癌)、A375-C5(
黑色素瘤)、NCI-H460(非小细胞肺癌)和 HepG2(肝细胞癌)的生长抑制作用。我们还使用自己建立的猪肝原代
细胞培养物(PLP1)评估了对非肿瘤细胞的毒性。二(杂)芳基胺的 NH2 基团位于正位,OMe 基团位于二(杂)芳基胺 NH 的对位,是最有前途的化合物,在所有测试的人类肿瘤
细胞系中 GI50 值最低(1.30-1.63 µM),在这些浓度下对 PLP1 没有毒性。在 NCI-H460
细胞系中分析了该化合物对细胞周期和诱导细胞凋亡的影响。结果表明,它改变了细胞周期轮廓,导致处于 G0/G1 期的细胞比例下降,细胞凋亡
水平上升。