发明人王建平,李文辉,黄志刚. "Method for the Synthesis of 2,2-Difluoro-2-(4-methoxy-3,5-dimethylphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 116789283 B, 授权公告日 2017-10-04.
发明人杨光,冯建国,何建平. "A Process for Preparing High-Purity 2,2-Difluoro-2-(4-methoxy-3,5-dimethylphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 111461265 B, 授权公告日 2015-07-24.
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. Chem., 2024, 1481, (7), 9363-9392.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 843, (1), 2177-2204.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2,2-Difluoro-2-(4-methoxy-3,5-dimethylphenyl)acetic acid Using HRMS and NMR". J. Sep. Sci., 2012, 900, (11), 3144-3149.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2016, 137, (2), 2091-2108.