Nowak P, Jørgensen K, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3388895 A1, 2018-06-28.
Patel M V, Klinger H, Yamamoto T. "Method for the Synthesis of 4-Chloro-2-(ethylamino)benzoic acid" [P]. US Patent, US 9344958 B2, 2015-10-22.
Mueller T, Anderson J P, Yamamoto T. "A Process for Preparing High-Purity 4-Chloro-2-(ethylamino)benzoic acid" [P]. US Patent, US 10067781 B2, 2022-07-11.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2022, 2189, 6282-6300.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2025, 789, 7150-7170.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-2-(ethylamino)benzoic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 411, (5), 3299-3328.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 980, (7), 3034-3059.