发明人郑宇鹏,杨光,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111153361 A, 授权公告日 2022-08-24.
发明人李文辉,周伟,刘建华. "Method for the Synthesis of 5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117089365 A, 授权公告日 2015-08-24.
Patel M V, Chen K W, Yamamoto T. "A Process for Preparing High-Purity 5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. US Patent, US 11312023 B2, 2017-07-06.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2021, 130, (8), 4810-4838.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2021, 734, (7), 1959-1988.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid Using HRMS and NMR". Talanta, 2024, 2081, (8), 1870-1875.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2019, 1557, (8), 483-492.