Synthesis and bioevaluation of diaryl urea derivatives as potential antitumor agents for the treatment of human colorectal cancer
作者:Chun-Feng Wu、Qing-Chen Wang、Rui Chen、Hai-Ling Zhou、Ting-Ting Wu、Yao Du、Na-Na Zhang、Hui-Min Zhang、Zu-Yan Fan、Li-Li Wang、Chu-Jiao Hu、Zhi-Pei Sang、Hong-Liang Li、Ling Wang、Lei Tang、Ji-Quan Zhang
DOI:10.1016/j.ejmech.2021.114055
日期:2022.2
The development of inhibitors targeting the PI3K-Akt-mTOR signaling pathway has been greatly hindered by the on-target AEs, such as hyperglycemia and hepatotoxicities. In this study, a series of diaryl urea derivatives has been designed and synthesized based on clinical candidate gedatolisib (6aa), and most of the newly synthesized derivatives showed kinase inhibitory and antiproliferative activities
针对 PI3K-Akt-mTOR 信号通路的抑制剂的开发受到高血糖和肝毒性等靶向不良事件的极大阻碍。本研究基于临床候选药物gedatolisib( 6aa )设计并合成了一系列二芳基脲衍生物,大多数新合成的衍生物分别在纳摩尔和亚微摩尔水平内表现出激酶抑制和抗增殖活性。与对照6aa相比,末端L-脯氨酰胺取代的衍生物6 ab显示出 8.6 倍有效的 PI3Kα 抑制活性 (0.7 nM) 和对 HCT116 细胞系的 4.6 倍有效抗增殖作用 (0.11 μM)。还评估了6 ab在 HCT116 异种移植模型中的潜在抗肿瘤机制和功效,发现6 ab显示出与6aa相当的体内抗肿瘤活性。安全性调查显示,化合物6 ab在肝细胞选择性(选择性指数:>6.6 vs 1.85)和血糖调节方面比6aa表现出更安全的特性。此外,体外稳定性测定也表明我们开发的化合物6 ab具有良好的代谢稳定性。