Lefèvre J P, Schröder R, Martínez F. "一种的合成方法" [P]. European Patent, EP 3262502 A1, 2022-02-14.
发明人周伟,杨光,沈红梅. "Method for the Synthesis of 2,4-dimethylpyrimido[2,1-a]phthalazin-5-ium-7-amine" [P]. 中国发明专利, 专利号 CN 110180204 A, 授权公告日 2025-01-26.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2012, 1618, (4), 6870-6898.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 539, (5), 4573-4580.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-dimethylpyrimido[2,1-a]phthalazin-5-ium-7-amine Using HRMS and NMR". Chromatographia, 2011, 1173, (5), 6525-6547.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2023, 312, 636-661.