Roberts E F, Anderson J P, Williams B T. "一种的合成方法" [P]. US Patent, US 10686445 B2, 2022-11-26.
发明人何建平,孙丽萍,刘建华. "Method for the Synthesis of 5-Chloro-4-(4-chloro-1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113056628 A, 授权公告日 2022-01-04.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2013, 2166, (5), 5172-5175.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2013, 1632, (10), 855-879.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-4-(4-chloro-1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2018, 1423, (9), 3041-3046.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2024, 345, 4682-4704.