Rational design, synthesis and biological evaluation of 1,3,4-oxadiazole pyrimidine derivatives as novel pyruvate dehydrogenase complex E1 inhibitors
作者:Haifeng He、Wei Wang、Yuan Zhou、Qin Xia、Yanliang Ren、Jiangtao Feng、Hao Peng、Hongwu He、Lingling Feng
DOI:10.1016/j.bmc.2016.03.011
日期:2016.4
On the basis of previous study on 2-methylpyrimidine-4-ylamine derivatives I, further synthetic optimization was done to find potent PDHc-E1 inhibitors with antibacterial activity. Three series of novel pyrimidine derivatives 6, 11 and 14 were designed and synthesized as potential Escherichia coli PDHc-E1 inhibitors by introducing 1,3,4-oxadiazole-thioether, 2,4-disubstituted-1,3-thiazole or 1,2,4
在先前对2-甲基嘧啶-4-基胺衍生物I的研究的基础上,进行了进一步的合成优化,以发现具有抗菌活性的有效PDHc-E1抑制剂。三个系列新颖嘧啶衍生物的6,11和14被设计和作为潜在的合成大肠杆菌通过引入1,3,4-恶二唑-硫醚,2,4-二取代的-1,3-噻唑或1,2- PDHC-E1抑制剂,4-三唑-4-胺-硫醚部分分别形成铅结构I。大部分6,11和14表现出良好的抑制活性的抗大肠杆菌PHDC-E1(IC 500.97–19.21μM)和对蓝细菌的明显抑制活性(EC 50 0.83–9.86μM)。它们的抑制活性远高于铅结构Ⅰ。11显示针对两者更有效的抑制活性大肠杆菌PDHC-E1(IC 50 <6.62μM)和蓝细菌(EC 50 比的<1.63μM)6,14或铅化合物予。具有良好酶选择性的最有效化合物11d对大肠杆菌PDHc-E1(IC 50 = 0.97μM )和蓝细菌(EC 50 =