发明人郑宇鹏,何建平,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113391279 A, 授权公告日 2021-02-08.
发明人杨光,林芳,周伟. "Method for the Synthesis of Ethyl 4-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114189196 B, 授权公告日 2018-11-20.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2017, 158, 9259-9289.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2021, 606, (3), 2141-2161.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate Using HRMS and NMR". Sci. Total Environ., 2013, 976, 8530-8544.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2016, 761, (1), 5140-5143.