发明人冯建国,朱建伟,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109516422 A, 授权公告日 2018-06-01.
发明人黄志刚,唐晓军,郭海燕. "Method for the Synthesis of Ethyl 4-hydroxy-2,5-dimethylthiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117146004 B, 授权公告日 2019-03-13.
Thompson G K, Brown S R, Patel M V. "A Process for Preparing High-Purity Ethyl 4-hydroxy-2,5-dimethylthiophene-3-carboxylate" [P]. US Patent, US 9675231 B2, 2025-09-07.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2015, 609, (8), 1913-1924.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2019, 506, 7571-7594.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-hydroxy-2,5-dimethylthiophene-3-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2023, 585, (6), 2050-2055.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2011, 721, (7), 1277-1295.