Comprehensive evaluation of chiral penflufen metabolite (penflufen-3-hydroxy-butyl): Identification, synthesis, enantioseparation, toxicity and enantioselective metabolism
作者:Shanshan Di、Ruiquan Liu、Zhenzhen Liu、Hao Xu、Huiyu Zhao、Yuele Lu、Peipei Qi、Zhiwei Wang、Xinquan Wang
DOI:10.1016/j.ecoenv.2023.114549
日期:2023.2
Identification and evaluations of pesticide metabolites are necessary for risk assessment and toxicological research. In this study, the metabolites of penflufen (a widely used chiral pesticide) in rat liver microsomes were identified using liquid chromatography Q-Exactive Plus mass spectrometry. In total, 17 penflufen metabolites were identified, and most of them were hydroxylation products, which
农药代谢物的鉴定和评价对于风险评估和毒理学研究是必要的。在这项研究中,使用液相色谱 Q-Exactive Plus 质谱法鉴定了大鼠肝微粒体中苯氟醚(一种广泛使用的手性杀虫剂)的代谢物。总共鉴定出 17 种苯氟醚代谢物,其中大部分是羟基化产物,由苯氟醚不同候选位点的氧化作用产生。代谢物 M12(penflufen-3-hydroxy-butyl,32%)的相对丰度最大,其次是 M8(15.6%)和 M2(12.8%)。主要代谢物 penflufen-3-hydroxy-butyl 首先通过 11 个反应合成,纯度为 99.73%。在制备对映体并建立对映体分离方法后,确定了M12对映体的绝对构型。斑马鱼(LC 50,>10 mg/L)和四种植物病原体(EC 50,148~34969 mg/L)显着低于亲本(LC 50,0.449~24.3 mg/L;EC 50,0.027~92.0)毫克/升)。在大鼠肝微粒体中,大约