A fluorine scan of a tubulin polymerization inhibitor isocombretastatin A-4: Design, synthesis, molecular modelling, and biological evaluation
作者:Timothée Naret、Jérôme Bignon、Guillaume Bernadat、Mohamed Benchekroun、Helene Levaique、Christine Lenoir、Joelle Dubois、Alain Pruvost、François Saller、Delphine Borgel、Boris Manoury、Veronique Leblais、Romain Darrigrand、Sébastien Apcher、Jean-Daniel Brion、Etienne Schmitt、Frédéric R. Leroux、Mouad Alami、Abdallah Hamze
DOI:10.1016/j.ejmech.2017.11.055
日期:2018.1
the effect of these compounds on the proliferative activity. The introduction of fluorine atom was performed on the phenyl ring or at the linker between the two aromatic rings. The modification of isoCA-4 by introduction of difluoromethoxy group at the para-position (3i) and substitution of the two protons of the linker by two fluorine atoms (3m), produced the most active compounds in the series, with
合成了一系列基于异康他汀A-4的氟化衍生物的微管蛋白聚合抑制剂,目的是评估这些化合物对增殖活性的影响。氟原子的引入是在苯环上或在两个芳环之间的连接基上进行的。通过在对位(3i)引入二氟甲氧基并用两个氟原子(3m)取代连接基的两个质子,对iso CA-4进行修饰,生成了该系列中活性最高的化合物,IC 50值为0.15–2.2 nM(3i)和0.1–2 nM(3m)分别针对一组六种癌细胞系。与参考CA-4或iso CA-4相比,化合物3i和3m具有更大的抗增殖活性,氟基团的存在导致抗增殖活性的显着增强。分子对接研究表明,化合物3i和3m占据了微管蛋白的秋水仙碱结合位点。在人类非癌细胞中的细胞毒性评估表明,化合物3i和3m在静止的外周血淋巴细胞中实际上无效,并且可能对癌细胞具有选择性的抗增殖活性。对细胞周期分布和形态学微管组织的分析表明,化合物3m诱导了G 2 / M相阻滞,并极大地破坏了微管网络。