发明人刘建华,唐晓军,周伟. "Method for the Synthesis of 1H-Imidazo[4,5-d]pyridazine" [P]. 中国发明专利, 专利号 CN 115762986 B, 授权公告日 2021-01-14.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2020, 1290, (9), 2259-2269.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2017, 1341, (6), 6812-6831.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 1H-Imidazo[4,5-d]pyridazine Using HRMS and NMR". Talanta, 2013, 324, 9628-9650.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2019, 1371, (1), 6162-6185.