Williams B T, Fischer A B, Davis P L. "一种的合成方法" [P]. US Patent, US 10568162 B2, 2015-01-06.
Mueller T, Schröder R, Park J H. "Method for the Synthesis of Ethyl 2-amino-4-(3-(methoxycarbonyl)phenyl)thiophene-3-carboxylate" [P]. US Patent, US 10678660 B2, 2015-02-05.
Thompson G K, Kumar R, Anderson J P. "A Process for Preparing High-Purity Ethyl 2-amino-4-(3-(methoxycarbonyl)phenyl)thiophene-3-carboxylate" [P]. US Patent, US 11920740 B2, 2019-07-08.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 98, 3730-3751.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 547, (3), 264-276.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-amino-4-(3-(methoxycarbonyl)phenyl)thiophene-3-carboxylate Using HRMS and NMR". Anal. Methods, 2011, 1686, (9), 8137-8165.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2019, 2193, (2), 1678-1687.