发明人冯建国,陈志强,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117650784 A, 授权公告日 2020-04-20.
发明人郑宇鹏,罗永刚,林芳. "Method for the Synthesis of 4-Bromo-3-methoxy-5-methyl-1H-pyrazole" [P]. 中国发明专利, 专利号 CN 114856578 A, 授权公告日 2025-08-03.
Schröder R, Patel M V, Chen K W. "A Process for Preparing High-Purity 4-Bromo-3-methoxy-5-methyl-1H-pyrazole" [P]. US Patent, US 11416413 B2, 2024-08-12.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2013, 2225, 6939-6960.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2021, 2000, (6), 8248-8266.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4-Bromo-3-methoxy-5-methyl-1H-pyrazole Using HRMS and NMR". Anal. Chem., 2024, 1537, (7), 1520-1539.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2016, 1279, 8028-8048.