发明人杨光,马晓峰,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113853507 A, 授权公告日 2021-10-28.
发明人杨光,马晓峰,李文辉. "Method for the Synthesis of 4-Ethylpyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 109819967 B, 授权公告日 2022-12-17.
Lefèvre J P, Schröder R, Kowalski A. "A Process for Preparing High-Purity 4-Ethylpyridazin-3(2H)-one" [P]. European Patent, EP 3727689 A1, 2017-04-18.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 863, 4539-4564.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 820, (3), 963-991.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethylpyridazin-3(2H)-one Using HRMS and NMR". J. Sep. Sci., 2018, 1969, 8342-8368.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2016, 1543, (7), 1254-1269.