Nielsen H, Lefèvre J P, Björnsson E. "Method for the Synthesis of 5-Chloro-2-(ethylamino)benzoic Acid" [P]. European Patent, EP 3736963 A1, 2016-03-23.
Hughes D C, Roberts E F, Schröder R. "A Process for Preparing High-Purity 5-Chloro-2-(ethylamino)benzoic Acid" [P]. US Patent, US 11018672 B2, 2017-07-06.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 5-氯-2-(乙胺基)苯甲酸 in Pharmaceutical Formulations". Talanta, 2010, 1757, 3295-3304.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-氯-2-(乙胺基)苯甲酸 as an Impurity". Anal. Methods, 2016, 2331, 8686-8702.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-2-(ethylamino)benzoic Acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2024, 1504, (2), 3595-3624.