发明人马晓峰,孙丽萍,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108197554 A, 授权公告日 2024-11-14.
发明人刘建华,郑宇鹏,唐晓军. "Method for the Synthesis of 4,5-Dichloro-2-(2-hydroxyethyl)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 109885820 A, 授权公告日 2017-11-16.
O'Brien P Q, Thompson G K, Chen K W. "A Process for Preparing High-Purity 4,5-Dichloro-2-(2-hydroxyethyl)pyridazin-3(2H)-one" [P]. US Patent, US 11478883 B2, 2025-05-04.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2025, 1361, 6861-6874.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 1416, (10), 1935-1963.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Dichloro-2-(2-hydroxyethyl)pyridazin-3(2H)-one Using HRMS and NMR". Anal. Methods, 2011, 1716, (3), 463-481.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2019, 175, 5237-5243.