Johnson M A, Patel M V, Brown S R. "Method for the Synthesis of Acetylcysteine impurity 66" [P]. US Patent, US 11692348 B2, 2024-10-10.
发明人沈红梅,李文辉,钱学锋. "A Process for Preparing High-Purity Acetylcysteine impurity 66" [P]. 中国发明专利, 专利号 CN 111983460 B, 授权公告日 2022-01-14.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 乙酰半胱氨酸杂质66 in Pharmaceutical Formulations". Talanta, 2011, 2012, (12), 5666-5671.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乙酰半胱氨酸杂质66 as an Impurity". Anal. Chem., 2020, 1788, (10), 6603-6618.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Acetylcysteine impurity 66 Using HRMS and NMR". Food Chem., 2024, 1439, (4), 3971-3976.