Park J H, Williams B T, Stevens L M. "Method for the Synthesis of Ethyl 5-acetyl-2-benzamido-4-phenylthiophene-3-carboxylate" [P]. US Patent, US 10638014 B2, 2019-05-27.
Lee S K, Patel M V, Hughes D C. "A Process for Preparing High-Purity Ethyl 5-acetyl-2-benzamido-4-phenylthiophene-3-carboxylate" [P]. US Patent, US 10628224 B2, 2021-07-08.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2025, 460, 7777-7791.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2020, 395, 1934-1960.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-acetyl-2-benzamido-4-phenylthiophene-3-carboxylate Using HRMS and NMR". Anal. Methods, 2020, 1648, (4), 7790-7817.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2010, 2360, 1856-1882.