发明人周伟,孙丽萍,李文辉. "Method for the Synthesis of 6-Oxo-1-phenyl-1,6-dihydropyridazin-3-yl thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117958106 A, 授权公告日 2022-03-25.
发明人何建平,冯建国,孙丽萍. "A Process for Preparing High-Purity 6-Oxo-1-phenyl-1,6-dihydropyridazin-3-yl thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110265049 B, 授权公告日 2019-08-03.
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". Molecules, 2021, 1217, 6126-6141.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 698, (2), 2159-2179.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 6-Oxo-1-phenyl-1,6-dihydropyridazin-3-yl thiophene-2-carboxylate Using HRMS and NMR". J. Sep. Sci., 2020, 1931, (5), 283-303.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2022, 160, (1), 4384-4390.