Design, synthesis, and structure–activity relationship study of novel plinabulin derivatives as anti-tumor agents based on the co-crystal structure
作者:Shixiao Wang、Changjiang Zhong、Feifei Li、Zhongpeng Ding、Yu Tang、Wenbao Li
DOI:10.1007/s11030-024-10835-7
日期:——
Plinabulin, a 2, 5-diketopiperazine-type tubulin inhibitor derived from marine natural products, is currently undergoing Phase III clinical trials for the treatment of non-small cell lung cancer (NSCLC) and chemotherapy-induced neutropenia (CIN). To obtain novel 2, 5-diketopiperazine derivatives with higher biological activity, we designed and synthesized two series of 37 plinabulin derivatives at
普那布林是一种源自海洋天然产物的2, 5-二酮哌嗪型微管蛋白抑制剂,目前正在进行治疗非小细胞肺癌(NSCLC)和化疗引起的中性粒细胞减少症(CIN)的III期临床试验。为了获得具有更高生物活性的新型2,5-二酮哌嗪衍生物,我们基于化合物1与微管蛋白的共晶结构,设计合成了C环上两个系列的37个普那布林衍生物。使用 NMR 和 HRMS 对其结构进行了表征。采用MTT法在肺癌细胞系NCI-H460上对所有化合物进行体外筛选,并在BxPC-3和HT-29细胞中进一步筛选活性较好的化合物。化合物16c (IC 50 = 2.0,NCI-H460;IC 50 = 1.2 nM,BxPC-3;IC 50 = 1.97 nM,HT-29)和26r (IC 50 = 0.96,NCI-H460;IC 50 = 0.66 nM) ,BxPC-3;IC 50 = 0.61 nM,HT-29)具有最佳活性。化合