作者:Zhong, Sihui、Zhang, Keke、Shen, Linhong、Jin, Xiangfei、Chen, Rong、Shen, Weiyang
DOI:10.1691/ph.2021.1124
日期:——
Al3+, in which the induction of Fe3+ was highly prone to the degradation of α-asarone. Thus, an iron (III)-mediated forced degradation study of α-asarone was carried out. One oxidative and four dimeric products were formed after the degradation of α-asarone. The complete mass fragmentation patterns for α-asarone and its degradation products (DPs) were established by UPLC-MS/MS in the positive ionization
α-细辛醚是菖蒲属植物的主要生物活性植物化学物质,广泛用于治疗呼吸系统疾病。在各种金属离子存在下研究了α-细辛醚的溶液稳定性。发现α-细辛醚在金属离子Fe3+、Cu2+和Al3+存在下不稳定,其中Fe3+的诱导极易引起α-细辛醚的降解。因此,进行了铁 (III) 介导的 α-细辛醚强制降解研究。α-细辛素降解后形成一种氧化产物和四种二聚体。通过 UPLC-MS/MS 在正离子模式下建立了 α-细辛醚及其降解产物 (DPs) 的完整质量碎片模式,并通过 1H 和 13C NMR 完成了它们的结构确认。然后,假设了所有 DPs 形成的机制途径。最后,探讨了α-细辛醚在过氧化氢和偶氮二异丁腈等氧化应激物存在下的氧化降解行为和机理。