Novel Diphenylamine 2,4'-Dicarboxamide Based Azoles as Potential Epidermal Growth Factor Receptor Inhibitors: Synthesis and Biological Activity
作者:Sahar Mahmoud Abou-Seri、Nahla Ahmed Farag、Ghaneya Sayed Hassan
DOI:10.1248/cpb.59.1124
日期:——
Several hybrid molecules of diphenylamine-2,4′-dicarboxamide with various azolidinones and related heterocyclic rings have been synthesized and explored as epidermal growth factor receptor (EGFR) kinase inhibitors. Most of them displayed promising in vitro tyrosine kinase inhibition as well as potent cellular antiproliferative activity in the EGFR over-expressing breast cancer cell line (MCF-7). Compounds 12b and 13b that exhibited the highest inhibition in the kinase assay (89, 81% inhibition at 10 μM, respectively), showed potent antiproliferative effect against MCF-7 tumor cell line (IC50 1.04, 0.91 μM respectively). Molecular docking studies revealed that these compounds can bind to ATP binding site of the EGFR kinase domain and were involved in H-bonding with Met 793, in analogy to the known EGFR tyrosine kinase inhibitors. Moreover, compounds 15a—c possessed profound antitumor activity (IC50 0.59—0.73 μM) and significant EGFR-TK inhibition, making them of particular interest. In summary, the newly synthesized compounds provide promising new lead for the future design and development of anticancer agents of potential EGFR-TK inhibitory activity.
作为表皮生长因子受体(EGFR)激酶抑制剂,人们合成并探索了几种二苯胺-2,4′-二甲酰胺与各种唑烷酮及相关杂环的杂化分子。其中大多数化合物都显示出良好的体外酪氨酸激酶抑制作用,并在表皮生长因子受体过度表达的乳腺癌细胞系(MCF-7)中显示出强大的细胞抗增殖活性。化合物 12b 和 13b 在激酶试验中表现出最高的抑制率(10 μM时的抑制率分别为 89% 和 81%),对 MCF-7 肿瘤细胞株也有很强的抗增殖作用(IC50 分别为 1.04 μM和 0.91 μM)。分子对接研究发现,这些化合物能与表皮生长因子受体激酶结构域的 ATP 结合位点结合,并与 Met 793 发生 H 键作用,这与已知的表皮生长因子受体酪氨酸激酶抑制剂类似。此外,化合物 15a-c 具有很强的抗肿瘤活性(IC50 0.59-0.73 μM)和显著的表皮生长因子受体-酪氨酸激酶抑制作用,因此特别令人感兴趣。总之,新合成的化合物为今后设计和开发具有潜在表皮生长因子受体-TK抑制活性的抗癌药物提供了新的线索。