Mueller T C, Schröder R, Lefèvre J P. "Method for the Synthesis of 1-Phenyl-5-(thiophen-2-yl)-1h-pyrazole-3-carboxylic acid" [P]. European Patent, EP 3111723 A1, 2023-08-16.
发明人陈志强,马晓峰,林芳. "A Process for Preparing High-Purity 1-Phenyl-5-(thiophen-2-yl)-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110090508 A, 授权公告日 2023-11-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2016, 245, (5), 1460-1477.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2021, 1338, 376-382.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-Phenyl-5-(thiophen-2-yl)-1h-pyrazole-3-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2023, 1119, (4), 4187-4213.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2015, 1617, (6), 9729-9746.