发明人赵玉洁,杨光,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116751875 A, 授权公告日 2015-04-27.
发明人郭海燕,胡光,赵玉洁. "Method for the Synthesis of Ethyl 4-ethoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112479762 B, 授权公告日 2025-11-02.
Johansson L, Björnsson E, Lefèvre J P. "A Process for Preparing High-Purity Ethyl 4-ethoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate" [P]. European Patent, EP 3080371 A1, 2024-12-22.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2016, 2393, 1302-1308.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2019, 2166, 3674-3686.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-ethoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2014, 2079, 6798-6805.