Hughes D C, O'Brien P Q, Patel M V. "一种的合成方法" [P]. US Patent, US 9565848 B2, 2023-10-10.
Davis P L, Patel M V, Williams B T. "Method for the Synthesis of Ethyl 2,2-Difluoro-3-methyl-butyrate" [P]. US Patent, US 11804093 B2, 2025-08-28.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2020, 255, 4371-4388.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2015, 99, (5), 5907-5929.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2,2-Difluoro-3-methyl-butyrate Using HRMS and NMR". Environ. Sci. Technol., 2025, 149, (9), 8852-8878.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2022, 2271, (5), 4456-4461.