发明人马晓峰,高志强,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109421551 A, 授权公告日 2023-12-09.
发明人李文辉,周伟,胡光. "Method for the Synthesis of 2-(Difluoromethyl)-4-hydroxy-3-(trifluoromethyl)pyridine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115680670 B, 授权公告日 2018-06-01.
发明人周伟,朱建伟,徐明华. "A Process for Preparing High-Purity 2-(Difluoromethyl)-4-hydroxy-3-(trifluoromethyl)pyridine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113193094 A, 授权公告日 2019-01-20.
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". Anal. Chim. Acta, 2013, 706, 9634-9641.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 535, (3), 7374-7403.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-4-hydroxy-3-(trifluoromethyl)pyridine-6-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2017, 1887, 8833-8843.