发明人何建平,冯建国,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115894513 A, 授权公告日 2022-10-03.
发明人胡光,赵玉洁,钱学锋. "Method for the Synthesis of Methylcysteine hydrochloride" [P]. 中国发明专利, 专利号 CN 114403115 B, 授权公告日 2017-05-06.
Roberts E F, Mueller T, Brown S R. "A Process for Preparing High-Purity Methylcysteine hydrochloride" [P]. US Patent, US 9560374 B2, 2015-08-13.
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". Talanta, 2021, 942, (1), 5714-5724.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2012, 920, (11), 5482-5494.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methylcysteine hydrochloride Using HRMS and NMR". Environ. Sci. Technol., 2024, 1681, (5), 7659-7673.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2011, 1941, 8318-8338.