香豆素[3,4]吡啶酮衍生物是一类以香豆素为母体的新型芳香杂环化合物．本文为香豆素[3,4]吡啶酮衍生物的合成提供了一种新的合成方法，并对其红外吸收光谱（IR）、质谱（MS）及核磁共振（NMR）波谱（包括¹H NMR、¹³C NMR、DEPT135、COSY、HSQC、HMBC）进行了测定，分析了其IR谱图特征吸收峰对应的基团，对其¹H和¹³C NMR信号进行了归属，确证了香豆素[3,4]吡啶酮衍生物的结构．该研究将为香豆素[3,4]吡啶酮衍生物的其他相关研究提供参考．

Coumarin-3,4-pyridone derivatives are a novel class of aromatic heterocyclic compounds based on the coumarin scaffold. This work presents a new synthetic method for the preparation of coumarin-3,4-pyridone derivatives. The infrared absorption spectrum, mass spectrum (MS), and nuclear magnetic resonance (NMR) spectra, including ¹H NMR, ¹³C NMR, DEPT135, COSY, HSQC and HMBC, were measured and analyzed. The characteristic absorption peaks in the IR spectra were assigned to their corresponding functional groups, and the signals in the ¹H and ¹³C NMR spectra were interpreted and assigned, thereby confirming the structure of the coumarin-3,4-pyridone derivatives. This study provides a reference for further research on coumarin-3,4-pyridone derivatives.