发明人何建平,郭海燕,孙丽萍. "Method for the Synthesis of 6-Chloro-3-phenyl[1,2,4]triazolo[4,3-b]pyridazine" [P]. 中国发明专利, 专利号 CN 114374049 A, 授权公告日 2023-02-06.
Park J H, Hughes D C, Anderson J P. "A Process for Preparing High-Purity 6-Chloro-3-phenyl[1,2,4]triazolo[4,3-b]pyridazine" [P]. US Patent, US 9573484 B2, 2025-10-16.
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". Biomed. Chromatogr., 2013, 1638, (10), 2452-2470.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 1396, (5), 7037-7049.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 6-Chloro-3-phenyl[1,2,4]triazolo[4,3-b]pyridazine Using HRMS and NMR". Phytochemistry, 2016, 2328, (5), 3554-3567.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2014, 757, 911-930.