发明人孙丽萍,张德明,冯建国. "Method for the Synthesis of 3,5-Difluoro-2-methoxybenzoic acid" [P]. 中国发明专利, 专利号 CN 110383285 B, 授权公告日 2019-07-26.
Davis P L, Kumar R, Park J H. "A Process for Preparing High-Purity 3,5-Difluoro-2-methoxybenzoic acid" [P]. US Patent, US 11983064 B2, 2017-02-22.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2010, 900, (9), 2489-2497.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2010, 1593, (3), 2148-2160.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 3,5-Difluoro-2-methoxybenzoic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 975, (8), 649-677.