发明人何建平,胡光,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117097378 A, 授权公告日 2025-06-07.
Thompson G K, Klinger H, Brown S R. "Method for the Synthesis of ethyl 5-chloro-4-formyl-thiophene-2-carboxylate" [P]. US Patent, US 10196127 B2, 2018-06-26.
发明人李文辉,张德明,沈红梅. "A Process for Preparing High-Purity ethyl 5-chloro-4-formyl-thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114710348 B, 授权公告日 2019-02-09.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2011, 2145, 8993-9000.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2014, 1482, 597-611.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 5-chloro-4-formyl-thiophene-2-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2019, 2148, (7), 1211-1230.