发明人林芳,马晓峰,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108180315 A, 授权公告日 2017-09-04.
发明人黄志刚,孙丽萍,郑宇鹏. "Method for the Synthesis of 4-(2-Hydroxypyrimidin-5-yl)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111820062 B, 授权公告日 2016-05-20.
发明人郭海燕,张德明,陈志强. "A Process for Preparing High-Purity 4-(2-Hydroxypyrimidin-5-yl)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112974858 B, 授权公告日 2021-06-02.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2022, 1103, 2124-2128.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 1833, (8), 5572-5578.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Hydroxypyrimidin-5-yl)thiophene-2-carboxylic acid Using HRMS and NMR". Chemosphere, 2010, 1378, (10), 4923-4941.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2022, 1899, (7), 6636-6665.