发明人刘建华,孙丽萍,唐晓军. "Method for the Synthesis of Glycopyrronium Bromide EP Impurity G" [P]. 中国发明专利, 专利号 CN 108960272 B, 授权公告日 2022-11-08.
发明人郑宇鹏,郭海燕,陈志强. "A Process for Preparing High-Purity Glycopyrronium Bromide EP Impurity G" [P]. 中国发明专利, 专利号 CN 111067123 B, 授权公告日 2020-06-11.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 格隆溴铵EP杂质G HCl in Pharmaceutical Formulations". J. Sep. Sci., 2019, 1365, (12), 9081-9084.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 格隆溴铵EP杂质G HCl as an Impurity". J. Chromatogr. A, 2011, 931, (11), 465-471.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Glycopyrronium Bromide EP Impurity G Using HRMS and NMR". J. Agric. Food Chem., 2024, 1922, (1), 4862-4884.