发明人林芳,李文辉,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116038098 A, 授权公告日 2016-04-02.
发明人黄志刚,唐晓军,冯建国. "Method for the Synthesis of 1-(2,2-Difluoroethyl)-5-methyl-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109413245 B, 授权公告日 2021-03-17.
Martínez F, Schröder R, Björnsson E. "A Process for Preparing High-Purity 1-(2,2-Difluoroethyl)-5-methyl-1H-pyrazole-4-carboxylic acid" [P]. European Patent, EP 3441389 A1, 2019-04-17.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2025, 143, (6), 8130-8160.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2017, 2357, 5684-5690.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2,2-Difluoroethyl)-5-methyl-1H-pyrazole-4-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2022, 517, 9498-9522.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2022, 2398, (11), 8585-8594.