Nuclear transcription factor nuclear factor-kappa B (NF-κB) has diverse pathophysiological functions, and NF-κB inhibitors are considered to be candidates for multiple therapeutic applications. We previously reported a novel triazine-based NF-κB inhibitor, 2-anilino-4,6-dichloro-1,3,5-triazine (NI241), that directly inhibits DNA binding of NF-κB. Here, we report synthesis of a series of triazine derivatives and evaluation of their structure–activity relationships for NF-κB inhibition. We found that 2-amino-4,6-dichloro-1,3,5-triazine substructure is essential for the inhibitory activity of the lead compound NI241, and modification of NI241 by introduction of an m-methoxy substituent on the phenyl ring afforded the more potent derivative 28. The structure–activity relationships identified in this study suggested a possible mechanism of irreversible NF-κB inhibition by NI241, and should be helpful in the design of other NF-κB inhibitors.
核转录因子核因子-kappa B(NF-κB)具有多种病理生理功能,NF-κB
抑制剂被认为是多种治疗应用的候选药物。我们以前报道过一种新型三嗪基
NF-κB 抑制剂 2-
苯胺基-4,6-二
氯-
1,3,5-三嗪(NI241),它能直接抑制 NF-κB 的 DNA 结合。在此,我们报告了一系列三嗪衍
生物的合成及其抑制 NF-κB 的结构-活性关系评估。我们发现,2-
氨基-4,6-二
氯-
1,3,5-三嗪亚结构对先导化合物 NI241 的抑制活性至关重要,通过在苯环上引入一个间甲氧基取代基对 NI241 进行修饰,可以得到更强的衍
生物 28。本研究确定的结构-活性关系表明了 NI241 抑制 NF-κB 的不可逆机制,这对设计其他
NF-κB 抑制剂应该有所帮助。