Jørgensen K, Lefèvre J P, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3996768 A1, 2015-09-13.
Jørgensen K, Lefèvre J P, Rossi M. "Method for the Synthesis of Acetylcysteine Impurity 37" [P]. European Patent, EP 3825998 A1, 2015-02-22.
发明人何建平,周伟,冯建国. "A Process for Preparing High-Purity Acetylcysteine Impurity 37" [P]. 中国发明专利, 专利号 CN 117329363 A, 授权公告日 2017-07-17.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 789, (1), 206-212.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 539, 3195-3208.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Acetylcysteine Impurity 37 Using HRMS and NMR". Anal. Chim. Acta, 2015, 529, 7896-7906.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2022, 1437, (11), 4209-4215.