Kumar R, Thompson G K, Roberts E F. "一种的合成方法" [P]. US Patent, US 11908139 B2, 2025-12-25.
发明人张德明,刘建华,林芳. "Method for the Synthesis of 2-methyl-2H,3H,5H,6H,7H,8H-pyrido[4,3-c]pyridazin-3-one" [P]. 中国发明专利, 专利号 CN 108101141 B, 授权公告日 2016-07-12.
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". Talanta, 2015, 181, (3), 7885-7903.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2020, 2314, 5526-5551.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-methyl-2H,3H,5H,6H,7H,8H-pyrido[4,3-c]pyridazin-3-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 2453, (1), 2642-2648.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2017, 2380, 24-32.