Mueller T C, Sørensen M, Nielsen H. "Method for the Synthesis of Methyl 3-amino-5-bromo-4-methylthiophene-2-carboxylate" [P]. European Patent, EP 3854864 A1, 2016-01-06.
发明人刘建华,马晓峰,陈志强. "A Process for Preparing High-Purity Methyl 3-amino-5-bromo-4-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115458016 B, 授权公告日 2022-03-13.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2018, 557, (4), 4854-4862.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2025, 2097, (2), 8527-8553.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-amino-5-bromo-4-methylthiophene-2-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2021, 1984, 8228-8257.