发明人李文辉,赵玉洁,钱学锋. "Method for the Synthesis of 3,3-Difluoro-3-(4-fluorophenyl)-DL-alanine hydrochloride" [P]. 中国发明专利, 专利号 CN 114342431 B, 授权公告日 2025-03-09.
发明人杨光,陈志强,林芳. "A Process for Preparing High-Purity 3,3-Difluoro-3-(4-fluorophenyl)-DL-alanine hydrochloride" [P]. 中国发明专利, 专利号 CN 113591474 B, 授权公告日 2018-09-10.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2022, 1256, (8), 9009-9012.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2024, 1532, (7), 4172-4178.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 3,3-Difluoro-3-(4-fluorophenyl)-DL-alanine hydrochloride Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2013, 392, (2), 2120-2137.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 1965, 7861-7880.