Studies on the collision-induced dissociation of adipoR agonists after electrospray ionization and their implementation in sports drug testing
作者:Josef Dib、Nils Schlörer、Wilhelm Schänzer、Mario Thevis
DOI:10.1002/jms.3545
日期:2015.2
AdipoR agonists are small, orally active molecules capable of mimicking the protein adiponectin, which represents an adipokine with antidiabetic and antiatherogenic effects. Two adiponectin receptors were reported in the literature referred to as adipoR1 and adipoR2. Activation of these receptors stimulates mitochondrial biogenesis and results in an improved oxidative metabolism (via adipoR1) and increased
AdipoR激动剂是能够模仿脂联素的小分子口服活性分子,脂联素代表具有抗糖尿病和抗动脉粥样硬化作用的脂肪因子。文献中报道了两种脂联素受体,称为adipoR1和adipoR2。这些受体的激活刺激线粒体的生物发生并导致改善的氧化代谢(通过adipoR1)和增加的胰岛素敏感性(通过adipoR2)。因此,adipoR激动剂是潜在的性能增强物质,是主动和预防性反兴奋剂措施的目标。在这项研究中,通过三步反应合成了两个称为AdipoRon和112254的adipoR激动剂以及两个同位素标记的内标(ISTD)。产品通过核磁共振波谱(NMR)进行了全面表征,质谱(MS)和密度泛函理论(DFT)计算。根据确定的产物离子元素组成,与衍生自标记类似物(ISTD)的产物离子比较,H / D交换实验和DFT计算结果,提出了电喷雾电离后碰撞诱导的解离途径。在m / z 174处发现了最丰富的产物离子,暂时将其分配给AdipoRon的质子化的1-苄基-1