Hughes D C, Johnson M A, Kumar R. "Method for the Synthesis of Ethyl 2-amino-5-methyl-4-(4-methylphenyl)thiophene-3-carboxylate" [P]. US Patent, US 11329098 B2, 2022-09-06.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2025, 1687, 8855-8865.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2011, 1784, (1), 5996-6017.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-amino-5-methyl-4-(4-methylphenyl)thiophene-3-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2024, 1273, (11), 3405-3419.