发明人杨光,孙丽萍,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117377550 A, 授权公告日 2019-03-27.
发明人马晓峰,黄志刚,王建平. "Method for the Synthesis of 3-Chloro-4-fluoro-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116867420 A, 授权公告日 2024-08-10.
发明人何建平,罗永刚,唐晓军. "A Process for Preparing High-Purity 3-Chloro-4-fluoro-1-benzothiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116223980 B, 授权公告日 2023-03-21.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2021, 2200, 687-713.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2017, 420, (11), 1861-1866.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-4-fluoro-1-benzothiophene-2-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 1184, (9), 4888-4892.