Park J H, Lee S K, Schröder R. "一种4-(3-fluoro-4-methoxyphenyl)butanoic acid的合成方法" [P]. US Patent, US 11776351 B2, 2018-05-21.
Sørensen M, Lefèvre J P, Martínez F. "Method for the Synthesis of 4-(3-fluoro-4-methoxyphenyl)butanoic acid" [P]. European Patent, EP 3574682 A1, 2017-06-13.
发明人胡光,赵玉洁,高志强. "A Process for Preparing High-Purity 4-(3-fluoro-4-methoxyphenyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 109326634 B, 授权公告日 2021-03-16.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 4-(3-fluoro-4-methoxyphenyl)butanoic acid in Pharmaceutical Formulations". Environ. Sci. Technol., 2023, 751, (5), 7009-7018.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(3-fluoro-4-methoxyphenyl)butanoic acid as an Impurity". Talanta, 2010, 1724, 173-183.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(3-fluoro-4-methoxyphenyl)butanoic acid Using HRMS and NMR". Anal. Chem., 2022, 1960, (2), 1193-1221.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 4-(3-fluoro-4-methoxyphenyl)butanoic acid Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2018, 2294, 8104-8121.