发明人冯建国,罗永刚,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114917549 A, 授权公告日 2016-11-28.
Anderson J P, Park J H, Roberts E F. "Method for the Synthesis of 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylic acid" [P]. US Patent, US 10787765 B2, 2023-05-05.
发明人高志强,王建平,韩伟. "A Process for Preparing High-Purity 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117192346 B, 授权公告日 2025-05-23.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2014, 1539, 5846-5850.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2019, 415, (4), 8898-8915.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2017, 400, (3), 6450-6473.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2017, 407, (11), 2407-2426.