Nowak P, Johansson L, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3186055 A1, 2017-03-23.
发明人赵玉洁,杨光,李文辉. "Method for the Synthesis of Ethyl 2-acetamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114196944 B, 授权公告日 2023-12-18.
发明人陈志强,刘建华,唐晓军. "A Process for Preparing High-Purity Ethyl 2-acetamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114224679 B, 授权公告日 2025-12-17.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 1081, 5624-5640.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2014, 1136, (5), 5204-5207.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-acetamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2025, 1403, (2), 4600-4607.