作者:Yewei Sun、Gaoxiao Zhang、Zaijun Zhang、Pei Yu、Haijing Zhong、Jing Du、Yuqiang Wang
DOI:10.1016/j.bmc.2012.04.016
日期:2012.6
previously reported a novel compound, namely TBN, possessing both antiplatelet and antiradical activities, showed significant neuroprotective effect in a rat stroke model. We herein report synthesis of a series of new pyrazine derivatives, and evaluation of their biological activities. Their mechanisms of action were also investigated. Among these new derivatives, compound 21, armed with two nitrone
由血管阻塞引起的缺血性中风是巨大的公共健康问题,迫切需要有效的治疗。溶栓/抗血小板药和神经保护剂的共同给药提高了治疗效果,同时具有溶栓/抗血小板和抗自由基活性的药剂为缺血性中风的治疗提供了有希望的策略。我们以前曾报道过一种具有抗血小板和抗自由基活性的新型化合物,即TBN,在大鼠中风模型中显示出显着的神经保护作用。我们在此报告了一系列新的吡嗪衍生物的合成及其生物学活性的评估。还研究了它们的作用机理。在这些新衍生物中,化合物21带有两个硝酮部分的,在体外和体内显示出最大的神经保护作用。化合物21显着抑制ADP诱导的血小板聚集。在无细胞的抗自由基实验中,化合物21是清除三个破坏力最大的基团OH的最有效试剂。Ø2个·--和ONOO - 。