Nielsen H, Martínez F, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3814502 A1, 2020-07-21.
Lefèvre J P, Nielsen H, Björnsson E. "Method for the Synthesis of Hydroxychloroquine EP Impurity G Hydrochloride" [P]. European Patent, EP 3050934 A1, 2021-07-22.
发明人马晓峰,韩伟,冯建国. "A Process for Preparing High-Purity Hydroxychloroquine EP Impurity G Hydrochloride" [P]. 中国发明专利, 专利号 CN 109133614 B, 授权公告日 2024-07-17.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2015, 725, (9), 9798-9801.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 1093, (9), 500-510.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Hydroxychloroquine EP Impurity G Hydrochloride Using HRMS and NMR". Phytochemistry, 2014, 1467, (4), 6845-6869.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2010, 1732, (5), 2841-2857.