发明人胡光,沈红梅,冯建国. "Method for the Synthesis of Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109165910 B, 授权公告日 2015-03-06.
Lee S K, Roberts E F, Schröder R. "A Process for Preparing High-Purity Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate" [P]. US Patent, US 11841981 B2, 2025-02-09.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2015, 1745, 5795-5823.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2021, 1839, 7730-7747.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylate Using HRMS and NMR". Sci. Total Environ., 2011, 1602, 1977-1992.