Discovery of new thiophene, pyrazole, isoxazole derivatives as antitumor, c-Met, tyrosine kinase and Pim-1 kinase inhibitors
作者:R. M. Mohareb、K. M. H. Hilmy、Y. A. Elshehawy
DOI:10.4314/bcse.v32i2.9
日期:——
The reaction of cyclohexan-1,3-dione (1) with ethyl orthoformate (2) in acetic acid gave the 2-(ethoxymethylene)cyclohexane-1,3-dione (3). The latter compound was used for further heterocyclization reactions to give thiophene, pyrazole and pyran derivatives. The cytotoxicity of the newly synthesized compound against the six cancer cell lines NUGC, DLDI, HA22T, HEPG2, HONE1 and MCF showed that compounds 5, 10c, 10d, 13b, 14a, 18b, 18d, 18e and 20b were the most potent compounds. On the other hand, the toxicity of these compounds against shrimp larvae indicated that compounds 7a, 10c, 13b, 14a, 18b and 18d were non toxic against the tested organisms. Inhibition of the most potent compounds towards the tyrosine kinases c-kit, FIT-3, Vascular Endothelial Growth Factor Receptor (VEGFR)-2, Estimated Glomerular Filtration Rate (EGFR) and Platelet-Derived Growth Factor Receptor (PDGFR) revealed that compounds 5, 10c, 10d, 13b, 18b, 18d, 18e and 20b were of the highest inhibitory effect. The Pim-1 kinase test revealed that compounds 10d, 18b and 20b were of the highest inhibitory effect. In addition, the c-Met enzymatic activities showed that compounds 10c, 10d, 18b, 18e, 19 and 20b showed higher potencies against c-Met kinase than the reference foretinib. On the other hand, compounds 7a, 7b, 10d, 13a, 13b, 14a, 14b, 16a, 16b, 17, 18a-f, 19 and 20 showed higher inhibition towards PC-3 cell line than the reference SGI-1776. Compounds 10c and 18b were of common potencies and their molecular docking was described.
环己烷-1,3-二酮(1)与乙基邻福尔马酸酯(2)在醋酸中反应生成了2-(乙氧基亚甲基)环己烷-1,3-二酮(3)。后者化合物用于进一步的杂环化反应,生成噻吩、吡唑和吡喃衍生物。新合成化合物对六种癌细胞系NUGC、DLDI、HA22T、HEPG2、HONE1和MCF的细胞毒性显示化合物5、10c、10d、13b、14a、18b、18d、18e和20b是最有效的化合物。另一方面,这些化合物对虾幼虫的毒性测试表明,化合物7a、10c、13b、14a、18b和18d对所测试生物无毒。对酪氨酸激酶c-kit、FIT-3、血管内皮生长因子受体(VEGFR)-2、估计肾小球滤过率(EGFR)和血小板源性生长因子受体(PDGFR)的最有效化合物的抑制作用显示,化合物5、10c、10d、13b、18b、18d、18e和20b具有最高的抑制效果。Pim-1激酶测试表明化合物10d、18b和20b具有最高的抑制效果。此外,c-Met酶活性显示,化合物10c、10d、18b、18e、19和20b对c-Met激酶的活性高于参考化合物foretinib。另一方面,化合物7a、7b、10d、13a、13b、14a、14b、16a、16b、17、18a-f、19和20对PC-3细胞系的抑制作用高于参考化合物SGI-1776。化合物10c和18b具有相似的效力,其分子对接已被描述。