发明人郭海燕,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110331952 A, 授权公告日 2025-06-02.
发明人王建平,周伟,徐明华. "Method for the Synthesis of 4,5-Dimethoxypyridazine" [P]. 中国发明专利, 专利号 CN 109549685 A, 授权公告日 2019-05-28.
发明人沈红梅,朱建伟,杨光. "A Process for Preparing High-Purity 4,5-Dimethoxypyridazine" [P]. 中国发明专利, 专利号 CN 110448243 B, 授权公告日 2019-11-14.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 738, (3), 6432-6448.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2022, 1543, 6180-6206.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Dimethoxypyridazine Using HRMS and NMR". Molecules, 2013, 675, 6564-6568.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2019, 1007, (1), 4402-4422.