Lefèvre J P, Johansson L, Martínez F. "Method for the Synthesis of Ethyl 2,2-Difluoro-2-(4-fluoro-3-methylphenyl)acetate" [P]. European Patent, EP 3278553 A1, 2022-01-10.
Patel M V, Roberts E F, Klinger H. "A Process for Preparing High-Purity Ethyl 2,2-Difluoro-2-(4-fluoro-3-methylphenyl)acetate" [P]. US Patent, US 11266161 B2, 2025-03-13.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 2,2-二氟-2-(3-甲基-4-氟苯基)乙酸乙酯 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2018, 1015, (2), 1447-1470.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2,2-二氟-2-(3-甲基-4-氟苯基)乙酸乙酯 as an Impurity". J. Chromatogr. A, 2017, 1863, (8), 7468-7478.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2,2-Difluoro-2-(4-fluoro-3-methylphenyl)acetate Using HRMS and NMR". Phytochemistry, 2012, 1139, (1), 1640-1653.