Shengrong Liao, Xiaochu Qin, Ding Li, Zhengchao Tu, Jinsheng Li, Xuefeng Zhou, Junfeng Wang, Bin Yang, Xiuping Lin, Juan Liu, Xianwen Yang, Yonghong Liu
文献索引:Eur. J. Med. Chem. 83 , 236-44, (2014)
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Non-protected 2,5-diketopiperazine derivatives have poor solubility thus with negative impact on their bioavailability. In the present study, twenty-one novel soluble mono-protected, and three non-protected 2,5-diketopiperazine derivatives were designed and synthesized. Their anticancer activity to ten cell lines were evaluated by using CCK8 assay, and the results showed that about half of the mono-protected derivatives had broad-spectrum anticancer activity. Among allyl-protected derivatives, compound 4m had strong activity to all the cell lines (IC50 = 0.5-4.5 μM), especially to the cancer cell lines U937 (IC50 = 0.5 μM) and K562 (IC50 = 0.9 μM). Compound 4m could become a lead compound for further development for anticancer agents. Copyright © 2014 Elsevier Masson SAS. All rights reserved.