有机化学 ›› 2018, Vol. 38 ›› Issue (10): 2720-2730.DOI: 10.6023/cjoc201803048 上一篇    下一篇

所属专题: 荧光探针-生物传感合辑

研究论文

新型Cdc25B抑制剂邻菲啰啉并1,2,4-三嗪衍生物及Co3+配合物的合成及其对DNA的荧光识别

张成路, 李益政, 李静怡, 李奕嶙, 宫荣庆, 王华玉   

  1. 辽宁师范大学化学化工学院 大连 116029
  • 收稿日期:2018-03-28 修回日期:2018-06-07 发布日期:2018-06-29
  • 通讯作者: 张成路,E-mail:zhangchenglu@lnnu.edu.cn E-mail:zhangchenglu@lnnu.edu.cn
  • 基金资助:

    辽宁省教育厅科学技术研究(No.2009A426)资助项目.

Synthesis and Bioactivities of Novel 1,2,4-Triazine Scheleton Phenanthroline Derivatives and the Fluorescent Recognition on DNA Using Three Novel Co (III) Complexes

Zhang Chenglu, Li Yizheng, Li Jingyi, Li Yilin, Gong Rongqing, Wang Huayu   

  1. School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029
  • Received:2018-03-28 Revised:2018-06-07 Published:2018-06-29
  • Contact: 10.6023/cjoc201803048 E-mail:zhangchenglu@lnnu.edu.cn
  • Supported by:

    Project supported by the Science and Technology Research Program of Liaoning Provincial Department of Education (No. 2009A426).

细胞分裂周期25磷酸酯酶B(缩写为Cdc25B)在各种人类癌症中过度表达,成为抗癌治疗的重要靶标.含有邻菲啰啉组块的分子因优良的荧光性能和生物活性,成为DNA荧光探针或新型治疗剂构筑的主要研究对象.设计合成了12个邻菲啰啉并-1,2,4-三嗪新型分子ARTP1ARTP12,经IR和NMR等对其进行了结构表征,评价了其对Cdc25B的抑制活性.结果发现,9个分子抑制活性优良,4个分子活性优于阳性参照物,有望成为Cdc25B抑制剂.选择具有代表性、不同结构的三种配合物与Co3+配位,制备了新型的配合物Co-ARTP-5Co-ARTP-6Co-ARTP-10,并借助IR,UV-Vis,1H NMR及荧光光谱等,确定了配合物的成功构筑,探究了其与小牛胸腺DNA(CT-DNA)的作用方式.结果发现配合物的紫外吸收峰减色红移,结合常数Kb分别为(2.12±0.20)×105、(3.29±0.20)×105和(1.50±0.20)×105 L·mol-1,发生强烈的荧光淬灭,表明配合物以插入方式与CT-DNA结合,可作为潜在的DNA荧光探针.

关键词: 1,10-邻菲啰啉, 1,2,4-三嗪, Cdc25B, Co3+配合物, 荧光探针

Cdc25B has become the important target for curing cancer owing to its over expression in kinds of cancers. Compounds containing phenanthroline moiety have become research objectives on the DNA fluorescence probes or the new curing agents for their excellent fluorescence property and bioactivities. Twelve novel 1,2,4-triazine scheleton phenanthroling derivatives ARTP1ARTP12 were first designed and synthesized, the structures of ARTP1ARTP12 were characterized successfully by means of IR and NMR. The inhibitory activities of ARTP1ARTP12 against Cdc25B were evaluated. The results show that nine target molecules exhibit excellent inhibitories, four molecules behave better activities than the contrast reference Na3VO4 indicating that they may be used as Cdc25B inhibitors. Meanwhile, three novel complexes Co-ARTP-5, Co-ARTP-6 and Co-ARTP-10 were first afforded by the reaction of the excellent inhibitory active compounds ARTP5, ARTP6 and ARTP10 with Co3+ respectively. The structures of the three complexes were confirmed through IR, UV-Vis, 1H NMR and fluorescence spectra. The interaction modes between the complexes and CT-DNA were explored. As a result, the excitation peaks of the complexes show a red shift and the complexes interact with CT-DNA through the insert mode. The binding constants Kb are (2.12±0.20)×105, (3.29±0.20)×105and (1.50±0.20)×105 L·mol-1, respectively, and it occurs strong fluorescene quenching. The complexes are expected to be the DNA fluorescence probes.

Key words: 1,10-phenanthroline, 1,2,4-triazine, Cdc25B, Co(III) complex, fluorescent