Mueller T, Park J H, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11850726 B2, 2021-12-18.
Schröder R, Anderson J P, Davis P L. "Method for the Synthesis of 4,5-Dichloro-2-(p-tolyl)pyridazin-3(2h)-one" [P]. US Patent, US 9481788 B2, 2022-03-10.
Rossi M, Jørgensen K, Nowak P. "A Process for Preparing High-Purity 4,5-Dichloro-2-(p-tolyl)pyridazin-3(2h)-one" [P]. European Patent, EP 3893820 A1, 2023-09-10.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2015, 1490, (1), 4026-4046.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2012, 1794, (12), 4884-4904.