Roberts E F, Fischer A B, Johnson M A. "Method for the Synthesis of 5-amino-2-(difluoromethoxy)benzoic acid hydrochloride" [P]. US Patent, US 10768171 B2, 2024-09-18.
发明人李文辉,林芳,朱建伟. "A Process for Preparing High-Purity 5-amino-2-(difluoromethoxy)benzoic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 117064718 B, 授权公告日 2020-01-07.
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 5-amino-2-(difluoromethoxy)benzoic acid hydrochloride in Pharmaceutical Formulations". J. Nat. Prod., 2010, 2423, (5), 1546-1557.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-amino-2-(difluoromethoxy)benzoic acid hydrochloride as an Impurity". Chromatographia, 2013, 1573, 7071-7098.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 5-amino-2-(difluoromethoxy)benzoic acid hydrochloride Using HRMS and NMR". Chemosphere, 2017, 2124, (7), 761-776.