新型4,8-二取代-8,9-二氢吡嗪[2,3-g]喹唑啉-7(6H)-酮化合物合成及抗肿瘤细胞增殖构效关系研究

目的:评价新型4,8-二取代-8,9-二氢吡嗪[2,3-g]喹唑啉-7(6H)-酮系列化合物体外抗肿瘤活性,获得高效抗肿瘤小分子化合物用于后续药物研发.方法:固相合成17个设计作用于表皮细胞生长因子受体(epidermal growth factor receptor,EGFR),结构为4,8-二取代-8,9-二氢吡嗪[2,3-g]喹唑啉-7(6H)-酮的新型系列化合物.采用MTT法对人肺癌细胞株A549、人慢性髓细胞性白血病细胞株K562及人胃癌细胞株SGC7901加药96 h后进行抗肿瘤活性筛选.结果:对于人肺癌细胞株A549,化合物7-13和7-14抑制效果最佳,其IC_(50)值分别为8.10和8.12 μmol/L.共有8个化合物对人慢性髓细胞性白血病细胞株K562有抑制作用,其中化合物7-2、7-13和7-17抑制效果最佳,其IC_(50)值分别为2.22、0.57和7.20 μmol/L.而对于人胃癌细胞株SGC7901,化合物7-3和7-13具有抑制效果,其IC_(50)值分别为4.20和9.71 μmol/L.结论:17个化合物对3种肿瘤细胞株呈现不同抑制效果,为结构修饰以提高化合物抗肿瘤活性提供了很好的依据.其中化合物7-13对所测瘤株均具增殖抑制活性,可作为潜在药物用于后续抗肿瘤药物研发.

4,8-Disubstituted-8,9-dihydro-pyrazine[2,3-g]quinazoline-7(6H)-ketones:A novel class of antitumor agents

Objective: To evaluate the antitumor activity of a novel class of 4,8-Disubstituted-8,9-dihydropyrazine[2,3-g]quinazoline-7(6H)-ketones in vitro,and to screen potential anticancer compounds for further study.Methods: Seventeen compounds of 4,8-Disubstituted-8,9-dihydropyrazine[2,3-g]quinazoline-7(6H)-ketones were synthesized with solid-phase method for biological evaluation of EGFR tyrosine kinase.MTT method was used to evaluate the cytotoxic activity in vitro against three human cancer cell lines(human lun...