发明人刘建华,唐晓军,李文辉. "Method for the Synthesis of Ethyl 7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114121220 A, 授权公告日 2019-11-13.
发明人黄志刚,沈红梅,唐晓军. "A Process for Preparing High-Purity Ethyl 7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116018971 A, 授权公告日 2022-06-25.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 740, (12), 3288-3300.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2012, 2324, (4), 6899-6910.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 7-oxo-2-propionamido-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2011, 1215, 8227-8248.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2023, 157, 2087-2092.