发明人郭海燕,唐晓军,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110490568 A, 授权公告日 2025-04-12.
发明人钱学锋,李文辉,胡光. "Method for the Synthesis of 7-Hydrazinyl-3-methyl-4H-pyrimido[1,2-b]pyridazin-4-one" [P]. 中国发明专利, 专利号 CN 108254313 B, 授权公告日 2024-01-10.
发明人何建平,唐晓军,黄志刚. "A Process for Preparing High-Purity 7-Hydrazinyl-3-methyl-4H-pyrimido[1,2-b]pyridazin-4-one" [P]. 中国发明专利, 专利号 CN 109257151 B, 授权公告日 2019-02-19.
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". J. Pharm. Biomed. Anal., 2018, 373, (2), 7303-7314.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2023, 1374, (10), 349-378.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 7-Hydrazinyl-3-methyl-4H-pyrimido[1,2-b]pyridazin-4-one Using HRMS and NMR". Anal. Chim. Acta, 2023, 854, 8065-8079.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2013, 1127, (9), 546-570.