Synthesis, docking and ADME prediction of novel 1,2,3-triazole-tethered coumarin derivatives as potential neuroprotective agents
作者:Maddineni Aruna Kumari、Chunduri Venkata Rao、Settypalli Triloknadh、Nallapaneni Harikrishna、Chintha Venkataramaiah、Wudayagiri Rajendra、Daggupati Trinath、Yeguvapalli Suneetha
DOI:10.1007/s11164-017-3210-2
日期:2018.3
In an attempt to find potential neuroprotective agents, a series of novel 3-(1-((1-(substituted phenyl)-1H-1,2,3-triazol-4-yl) methoxyimino) ethyl)-2H-chromen-2-one derivatives 6a–j were synthesized by using “click reaction” and evaluated for their in vitro neuroprotectivity and toxicity against H2O2-induced PC12 cell lines by using MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) reduction assay. Most of them exhibited moderate to good activity in which compound 6e was found to have significant protectivity with cell viability of 94.51 ± 0.68% at 50 µg/ml concentration and half-maximal effective concentration (EC50) value of 14.04 µg/ml against injured PC12 cell lines and low toxicity with half-maximal cytotoxic concentration (CC50) value of 544.88 µg/ml. Furthermore, molecular docking was carried out in order to understand plausible binding modes of novel derivatives with the active site of glycogen synthase kinase-3β enzyme, and the results were well complemented by the in vitro neuroprotective results against H2O2-induced PC12 cell lines. Additionally, in silico ADME properties showed drug likeness with good oral absorption and moderate blood–brain barrier permeability. The structures of all the synthesized compounds were confirmed by 1H NMR, 13C NMR, IR and LC–MS analyses.
为了寻找潜在的神经营养剂,通过"点击反应"合成了一系列新型3-(1-((1-(取代苯基)-1H-1,2,3-三唑-4-基)甲氧亚氨基)乙基)-2H-色烯-2-酮衍生物6a–j,并利用MTT(3-[4,5-二甲基噻唑-2-基]-2,5-二苯基四唑溴盐)还原法检测其对H2O2诱导的PC12细胞系的体外神经营养活性和毒性。其中大部分化合物显示出中等到良好的活性,化合物6e在50 µg/ml浓度下对损伤的PC12细胞系具有显著的保护作用,细胞存活率为94.51 ± 0.68%,半效浓度(EC50)值为14.04 µg/ml,而其半致死浓度(CC50)值为544.88 µg/ml,毒性较低。此外,进行了分子对接以了解这些新颖衍生物与糖原合酶激酶-3β酶活性位点的可能结合模式,结果与对H2O2诱导的PC12细胞系的体外神经营养活性结果相辅相成。此外,计算ADME性质显示具有良好的口服吸收和中等血液-脑屏障渗透性。所有合成化合物的结构通过1H NMR、13C NMR、IR和LC-MS分析得到确认。