发明人周伟,孙丽萍,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112168191 A, 授权公告日 2025-08-05.
Schröder R, Klinger H, Williams B T. "Method for the Synthesis of 5-(methylamino)-2,3-dihydropyridazin-3-one" [P]. US Patent, US 11407405 B2, 2018-09-24.
发明人黄志刚,马晓峰,赵玉洁. "A Process for Preparing High-Purity 5-(methylamino)-2,3-dihydropyridazin-3-one" [P]. 中国发明专利, 专利号 CN 113837130 B, 授权公告日 2018-12-26.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2015, 559, (8), 897-904.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2025, 373, (3), 2886-2891.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 5-(methylamino)-2,3-dihydropyridazin-3-one Using HRMS and NMR". Anal. Methods, 2020, 1088, (12), 9088-9107.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2013, 1616, (2), 5974-5982.