发明人孙丽萍,高志强,韩伟. "Method for the Synthesis of 3,5-Difluoro-4-(oxetan-3-yloxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 111302338 B, 授权公告日 2024-11-25.
发明人罗永刚,黄志刚,马晓峰. "A Process for Preparing High-Purity 3,5-Difluoro-4-(oxetan-3-yloxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 112510568 B, 授权公告日 2024-07-05.
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. Chim. Acta, 2023, 1003, (10), 4940-4965.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 1699, 4877-4887.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3,5-Difluoro-4-(oxetan-3-yloxy)benzoic acid Using HRMS and NMR". Chemosphere, 2025, 2195, (7), 8496-8523.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2011, 1473, (1), 3018-3043.