作者:Qi Yan、Yujie Wang、Wei Zhang、Yingxia Li
DOI:10.3390/md14050085
日期:——
A conformational restriction strategy was used to design and synthesize nine TZT-1027 analogues. 3-Aryl-azetidine moiety was used to replace phenylethyl group of TZT-1027 at the C-terminus. These analogues exhibited moderate to excellent antiproliferative activities, and the most potent compound 1a showed IC50 values of 2.2 nM against A549 and 2.1 nM against HCT116 cell lines, respectively. However, 1a could not achieve effective inhibition at all the dose levels in the A549 xenograft model (up to 5 mg/kg, injection, once a day), which is only 16%–35% inhibition at the end of the experiment.
采用构象限制策略设计并合成了九种 TZT-1027 类似物。用 3-丙烯基氮杂环丁烷取代 TZT-1027 C 端的苯乙基。这些类似物表现出中等到优异的抗增殖活性,其中最有效的化合物 1a 对 A549 和 HCT116 细胞株的 IC50 值分别为 2.2 nM 和 2.1 nM。然而,在 A549 异种移植模型中,1a 在所有剂量水平(最高 5 毫克/千克,注射,每天一次)都无法达到有效的抑制作用,实验结束时抑制率仅为 16%-35%。