Thompson G K, Johnson M A, Schröder R. "一种的合成方法" [P]. US Patent, US 9118733 B2, 2020-09-16.
发明人韩伟,林芳,陈志强. "Method for the Synthesis of Torasemide Impurity 53" [P]. 中国发明专利, 专利号 CN 111336187 B, 授权公告日 2019-01-21.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2017, 456, (5), 2272-2295.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2015, 2295, 4861-4876.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Torasemide Impurity 53 Using HRMS and NMR". Molecules, 2019, 1913, (9), 8550-8554.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 2479, 4861-4870.