Anderson J P, Stevens L M, Thompson G K. "一种5,6-二氟吡啶-3-羧酸的合成方法" [P]. US Patent, US 11446559 B2, 2019-06-07.
发明人郑宇鹏,张德明,孙丽萍. "Method for the Synthesis of 5,6-difluoropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114922602 B, 授权公告日 2025-04-26.
发明人沈红梅,王建平,林芳. "A Process for Preparing High-Purity 5,6-difluoropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112407332 B, 授权公告日 2017-04-25.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 5,6-二氟吡啶-3-羧酸 in Pharmaceutical Formulations". J. Sep. Sci., 2015, 2125, (9), 5959-5984.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5,6-二氟吡啶-3-羧酸 as an Impurity". Biomed. Chromatogr., 2025, 165, (6), 1817-1829.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-difluoropyridine-3-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2013, 2276, (11), 8649-8665.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate 5,6-二氟吡啶-3-羧酸 Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2013, 960, (10), 1535-1555.