发明人孙丽萍,郭海燕,胡光. "Method for the Synthesis of Ethyl 2,6-difluoro-4-hydroxybenzoate" [P]. 中国发明专利, 专利号 CN 112754539 A, 授权公告日 2015-04-25.
发明人孙丽萍,徐明华,赵玉洁. "A Process for Preparing High-Purity Ethyl 2,6-difluoro-4-hydroxybenzoate" [P]. 中国发明专利, 专利号 CN 112436346 A, 授权公告日 2022-02-23.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2012, 2401, (7), 6092-6112.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2012, 140, 3550-3553.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2,6-difluoro-4-hydroxybenzoate Using HRMS and NMR". Chromatographia, 2024, 1323, 879-907.