发明人唐晓军,徐明华,韩伟. "Method for the Synthesis of Glycopyrronium Bromide EP Impurity D" [P]. 中国发明专利, 专利号 CN 108173804 B, 授权公告日 2015-09-23.
发明人杨光,李文辉,徐明华. "A Process for Preparing High-Purity Glycopyrronium Bromide EP Impurity D" [P]. 中国发明专利, 专利号 CN 112901702 B, 授权公告日 2016-06-20.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of 甘罗溴铵EP杂质D in Pharmaceutical Formulations". Chromatographia, 2017, 1636, (5), 9345-9363.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 甘罗溴铵EP杂质D as an Impurity". J. Sep. Sci., 2011, 442, (7), 9240-9244.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Glycopyrronium Bromide EP Impurity D Using HRMS and NMR". Chemosphere, 2015, 752, (3), 2444-2457.