发明人王建平,周伟,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113809366 A, 授权公告日 2019-09-02.
Björnsson E, Schröder R, Martínez F. "Method for the Synthesis of 2,5-Dioxopyrrolidin-1-yl 6-(2-(propan-2-ylidene)hydrazinyl)nicotinate" [P]. European Patent, EP 3603716 A1, 2025-07-25.
发明人杨光,徐明华,王建平. "A Process for Preparing High-Purity 2,5-Dioxopyrrolidin-1-yl 6-(2-(propan-2-ylidene)hydrazinyl)nicotinate" [P]. 中国发明专利, 专利号 CN 114115777 B, 授权公告日 2022-06-20.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2010, 589, (5), 3800-3805.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2016, 321, (10), 2634-2654.