发明人朱建伟,赵玉洁,陈志强. "Method for the Synthesis of Methyl 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113810464 B, 授权公告日 2023-09-05.
发明人杨光,胡光,李文辉. "A Process for Preparing High-Purity Methyl 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108461950 B, 授权公告日 2024-06-08.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2018, 300, 5447-5473.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2012, 987, 8648-8666.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 742, 1877-1906.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2021, 1327, 7952-7969.