发明人沈红梅,钱学锋,何建平. "Method for the Synthesis of 7-(3-Fluorobenzyl)-3-methylisoxazolo[4,5-d]pyridazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 117418473 B, 授权公告日 2023-12-20.
发明人胡光,马晓峰,李文辉. "A Process for Preparing High-Purity 7-(3-Fluorobenzyl)-3-methylisoxazolo[4,5-d]pyridazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 109874462 A, 授权公告日 2020-10-05.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 1625, 3942-3961.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2013, 1061, (7), 4179-4198.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 7-(3-Fluorobenzyl)-3-methylisoxazolo[4,5-d]pyridazin-4(5H)-one Using HRMS and NMR". Molecules, 2020, 2311, (5), 2176-2186.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2013, 1526, (3), 5559-5570.