发明人周伟,徐明华,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110257202 A, 授权公告日 2021-09-09.
发明人孙丽萍,唐晓军,杨光. "Method for the Synthesis of N-Methoxy-1-(4-methoxyphenyl)-N-methyl-5-oxopyrrolidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 116854607 A, 授权公告日 2022-09-28.
发明人冯建国,杨光,韩伟. "A Process for Preparing High-Purity N-Methoxy-1-(4-methoxyphenyl)-N-methyl-5-oxopyrrolidine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 108071583 A, 授权公告日 2017-10-03.
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". Biomed. Chromatogr., 2021, 217, (5), 4028-4050.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 1329, (2), 3952-3973.