Williams B T, Hughes D C, Anderson J P. "一种的合成方法" [P]. US Patent, US 11548609 B2, 2025-11-20.
Davis P L, Chen K W, O'Brien P Q. "Method for the Synthesis of Ethyl 2-(4-chlorophenylamino)-2-oxoacetate" [P]. US Patent, US 11628195 B2, 2015-12-08.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2021, 663, 2999-3029.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2020, 647, (1), 1891-1913.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(4-chlorophenylamino)-2-oxoacetate Using HRMS and NMR". J. Sep. Sci., 2016, 2032, (11), 7889-7913.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2022, 1299, 7131-7153.