发明人张德明,朱建伟,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110194328 A, 授权公告日 2020-12-08.
Davis P L, Kumar R, Fischer A B. "Method for the Synthesis of 5-Amino-1-(2-chloro-5-fluorophenyl)-1h-pyrazole-4-carboxylic acid" [P]. US Patent, US 11830212 B2, 2024-12-26.
发明人刘建华,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 5-Amino-1-(2-chloro-5-fluorophenyl)-1h-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113149815 A, 授权公告日 2023-10-23.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 2046, (9), 3614-3622.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2025, 1177, (8), 2036-2062.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 5-Amino-1-(2-chloro-5-fluorophenyl)-1h-pyrazole-4-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2017, 869, (11), 9382-9388.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2024, 600, (3), 6822-6838.