Williams B T, Chen K W, Fischer A B. "一种呋塞米杂质43的合成方法" [P]. US Patent, US 11077344 B2, 2018-08-15.
Kumar R, Stevens L M, Lee S K. "Method for the Synthesis of Furosemide Impurity 43" [P]. US Patent, US 9850090 B2, 2019-09-07.
发明人唐晓军,郑宇鹏,高志强. "A Process for Preparing High-Purity Furosemide Impurity 43" [P]. 中国发明专利, 专利号 CN 117776878 B, 授权公告日 2024-10-26.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 呋塞米杂质43 in Pharmaceutical Formulations". Environ. Sci. Technol., 2024, 1237, 5356-5380.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 呋塞米杂质43 as an Impurity". Chemosphere, 2013, 610, 7239-7253.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Furosemide Impurity 43 Using HRMS and NMR". Phytochemistry, 2012, 1541, 2156-2163.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate 呋塞米杂质43 Profile in Drug Substances According to ICH Guidelines". Food Chem., 2023, 1943, (12), 5368-5373.