Björnsson E, Jørgensen K, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3084696 A1, 2025-02-03.
发明人何建平,唐晓军,韩伟. "Method for the Synthesis of 3-(4-Ethyl-5-hydroxy-3-methyl-1h-pyrazol-1-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 113189418 A, 授权公告日 2023-04-15.
发明人刘建华,唐晓军,钱学锋. "A Process for Preparing High-Purity 3-(4-Ethyl-5-hydroxy-3-methyl-1h-pyrazol-1-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 108132361 B, 授权公告日 2020-01-15.
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". Biomed. Chromatogr., 2012, 643, 3867-3881.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2014, 1653, 540-551.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Ethyl-5-hydroxy-3-methyl-1h-pyrazol-1-yl)benzoic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2019, 803, (10), 8696-8714.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2012, 504, (5), 5878-5884.