Structural analysis of 2-arylidene-1-indanone derivatives by electrospray ionization tandem mass spectrometry
作者:José C. J. M. D. S. Menezes、José A. S. Cavaleiro、M. Rosário M. Domingues
DOI:10.1002/rcm.6701
日期:2013.11.15
derivatives inspired from donepezil, the current drug used for the treatment of Alzheimer's disease as inhibitor of acetylcholinesterase (AChE), were studied for the first time by electrospray ionization mass spectrometry (ESI-MS) and tandem mass spectrometry (MS/MS). Structurally, these arylidene-indanone compounds are considered as cyclic analogues of chalcones. METHODS ESI-MS and tandem mass spectra were
RATIONALE首次研究了从多奈哌齐中获得启发的2-芳基-4-甲氧基(或羟基)-7-甲基-1-茚满酮衍生物,多奈哌齐是目前用于治疗阿尔茨海默氏病的乙酰胆碱酯酶(AChE)抑制剂。电喷雾电离质谱(ESI-MS)和串联质谱(MS / MS)。在结构上,这些亚芳基-茚满酮化合物被认为是查耳酮的环状类似物。方法使用Q-TOF 2仪器获取ESI-MS和串联质谱。使用标准的分离和激发程序,通过在Q-TOF和LXQ线性离子阱质谱仪中获得的CID-MS(2-3)光谱分析碎片模式。结果所有的2-亚芳基茚满酮均显示出共同的碎裂途径,导致了(2(1),1' )m / z 187处的A(+)产物离子和逆醛醇产物离子[(2,2(1))B(+)],可以在B环中建立取代。注意到给电子和吸电子取代基对这些断裂途径的影响。OCH3,OH,NO2和Br取代基的存在产生了典型的片段化过程,使它们具有明确的指纹。提出了在B环上