Novel Neuroprotective Lead Compound Ligustrazine Derivative Mass Spectrometry Fragmentation Rule and Metabolites in Rats by LC/LTQ-Orbitrap MS
作者:Xinyu Zhang、Rui Zhao、Meng Chen、Tao Ma、Gaorong Wu、Nannan Xue、Guoliang Li、Hui Wang、Kang Fang、Wenxi Zhang、Penglong Wang、Haimin Lei
DOI:10.3390/molecules23051154
日期:——
existed after rapid metabolism due to uncertain reasons. Thus, the fragmentation regularities of mass spectra, and metabolites, of T-CA in rats were examined using liquid chromatography-electrospray ionizationion trap mass spectrometry (LC/LTQ-Orbitrap MS) in this research. The main fragment ion, mass spectrum characteristics, and the structural information were elucidated. When compared with a blank
川gust嗪衍生物的神经保护性评价已成为全世界的研究重点。新型川gust嗪衍生物,(3,5,6-三甲基吡嗪-2-基)甲基(E)-3-(4-((3,5,6-三甲基吡嗪-2--1)甲氧基)苯基)丙烯酸酯(T-在我们以前的研究中,在分化的PC12细胞模型和大脑中动脉闭塞(MCAO)模型中,已显示出对CoCl 2诱导的神经毒性的保护作用。但是,由于不确定的原因,在快速代谢后几乎没有母体药物存在。因此,在这项研究中,使用液相色谱-电喷雾电离阱质谱(LC / LTQ-Orbitrap MS)检查了大鼠T-CA的质谱和代谢物的碎片化规律。阐明了主要碎片离子,质谱特性和结构信息。与空白样品比较时,我们鉴定了五种T-CA代谢物,包括三个I期代谢物和两个II期代谢物。结果表明,大鼠口服T-CA的代谢途径为水解(醚键断裂,酯键断裂),氧化,还原,葡萄糖醛酸化等。此外,合成了三种主要代谢产物,其结构为通过超导高分