Fischer A B, Roberts E F, Park J H. "一种的合成方法" [P]. US Patent, US 10053019 B2, 2022-02-07.
Lee S K, Yamamoto T, Kumar R. "Method for the Synthesis of 3-{6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}propanoic acid" [P]. US Patent, US 9599151 B2, 2015-07-21.
Chen K W, Thompson G K, Brown S R. "A Process for Preparing High-Purity 3-{6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}propanoic acid" [P]. US Patent, US 9232120 B2, 2018-04-13.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 1183, (4), 8298-8319.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1142, (8), 8942-8963.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 3-{6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}propanoic acid Using HRMS and NMR". Anal. Chem., 2022, 844, 288-309.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2010, 1832, (5), 6103-6131.