发明人徐明华,李文辉,冯建国. "Method for the Synthesis of Methyl 4-chloro-1-(3-chlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112712432 B, 授权公告日 2022-12-27.
Kowalski A, Mueller T C, Nowak P. "A Process for Preparing High-Purity Methyl 4-chloro-1-(3-chlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate" [P]. European Patent, EP 3891156 A1, 2025-03-02.
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". Food Chem., 2013, 1913, 9029-9057.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2020, 1619, (4), 8705-8726.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-chloro-1-(3-chlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2015, 1350, 198-220.