Kumar R, Brown S R, Chen K W. "一种的合成方法" [P]. US Patent, US 10176840 B2, 2019-02-17.
Björnsson E, Mueller T C, Jørgensen K. "Method for the Synthesis of 4-(2,5-Difluorophenyl)-4-oxobutanoic acid" [P]. European Patent, EP 3110097 A1, 2024-11-23.
发明人张德明,胡光,韩伟. "A Process for Preparing High-Purity 4-(2,5-Difluorophenyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 112918389 B, 授权公告日 2019-10-12.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2011, 1047, (10), 3025-3047.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2016, 1221, 3598-3606.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2,5-Difluorophenyl)-4-oxobutanoic acid Using HRMS and NMR". Chromatographia, 2025, 1128, 3802-3815.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2021, 845, 5108-5134.