Nowak P, Nielsen H, Johansson L. "一种的合成方法" [P]. European Patent, EP 3296678 A1, 2020-11-16.
发明人朱建伟,徐明华,韩伟. "Method for the Synthesis of 4-Ethyl 2-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 110422961 A, 授权公告日 2016-03-09.
发明人冯建国,马晓峰,唐晓军. "A Process for Preparing High-Purity 4-Ethyl 2-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 108351732 A, 授权公告日 2023-08-27.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2024, 1089, (4), 628-631.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2014, 1373, 6422-6447.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl 2-methyl 5-amino-3-methylthiophene-2,4-dicarboxylate Using HRMS and NMR". Sci. Total Environ., 2014, 1893, (6), 1266-1278.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2021, 449, (4), 330-334.