发明人徐明华,杨光,黄志刚. "Method for the Synthesis of 5-Bromo-2-cyano-4-(difluoromethyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 113422277 B, 授权公告日 2025-07-05.
发明人黄志刚,周伟,沈红梅. "A Process for Preparing High-Purity 5-Bromo-2-cyano-4-(difluoromethyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 115129152 A, 授权公告日 2021-09-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2011, 1206, 4499-4525.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2016, 1681, (12), 9532-9549.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-Bromo-2-cyano-4-(difluoromethyl)benzoic acid Using HRMS and NMR". Phytochemistry, 2023, 296, 8483-8495.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2024, 1752, (12), 1232-1260.