发明人赵玉洁,郑宇鹏,朱建伟. "Method for the Synthesis of N-(2,4-Difluorobenzyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 116759580 A, 授权公告日 2018-05-10.
发明人李文辉,林芳,孙丽萍. "A Process for Preparing High-Purity N-(2,4-Difluorobenzyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 108416258 A, 授权公告日 2019-02-25.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 2253, 7412-7426.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2013, 1245, (2), 9173-9201.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of N-(2,4-Difluorobenzyl)-1-methyl-3-(thiophen-2-yl)-1H-pyrazole-5-carboxamide Using HRMS and NMR". Anal. Chem., 2014, 1609, 6178-6200.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2012, 954, 6976-6995.