发明人钱学锋,冯建国,孙丽萍. "Method for the Synthesis of 6-Bromo-4-(difluoromethyl)-5-methylnicotinic acid" [P]. 中国发明专利, 专利号 CN 111263748 A, 授权公告日 2019-12-06.
发明人刘建华,郭海燕,张德明. "A Process for Preparing High-Purity 6-Bromo-4-(difluoromethyl)-5-methylnicotinic acid" [P]. 中国发明专利, 专利号 CN 114709725 B, 授权公告日 2022-03-02.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2019, 868, 2114-2140.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 430, 8498-8517.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 6-Bromo-4-(difluoromethyl)-5-methylnicotinic acid Using HRMS and NMR". Environ. Sci. Technol., 2025, 700, (8), 2768-2785.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2022, 1538, 7721-7724.