发明人张德明,徐明华,李文辉. "Method for the Synthesis of Ethyl 1-(6-chloropyridazin-3-yl)-4-methyl-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109289321 B, 授权公告日 2016-06-27.
发明人罗永刚,徐明华,刘建华. "A Process for Preparing High-Purity Ethyl 1-(6-chloropyridazin-3-yl)-4-methyl-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114201603 B, 授权公告日 2025-09-03.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2022, 655, (7), 2275-2300.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2024, 1912, (1), 4767-4794.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1-(6-chloropyridazin-3-yl)-4-methyl-1H-pyrrole-3-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2023, 2087, (8), 256-266.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2025, 1133, (2), 2340-2369.