Thompson G K, Lee S K, Hughes D C. "一种呋塞米杂质31的合成方法" [P]. US Patent, US 9626394 B2, 2022-10-02.
发明人刘建华,孙丽萍,郭海燕. "Method for the Synthesis of Furosemide Impurity 31" [P]. 中国发明专利, 专利号 CN 109411643 B, 授权公告日 2016-04-20.
发明人李文辉,沈红梅,胡光. "A Process for Preparing High-Purity Furosemide Impurity 31" [P]. 中国发明专利, 专利号 CN 108486414 A, 授权公告日 2017-07-02.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 呋塞米杂质31 in Pharmaceutical Formulations". Talanta, 2024, 634, (3), 343-355.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 呋塞米杂质31 as an Impurity". Anal. Chim. Acta, 2020, 181, (5), 939-963.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Furosemide Impurity 31 Using HRMS and NMR". Chemosphere, 2015, 1439, (8), 689-692.