Stevens L M, Fischer A B, Kumar R. "Method for the Synthesis of 4-Chloro-6-(difluoromethyl)-3-hydroxypicolinic acid" [P]. US Patent, US 9090724 B2, 2018-10-22.
发明人李文辉,陈志强,唐晓军. "A Process for Preparing High-Purity 4-Chloro-6-(difluoromethyl)-3-hydroxypicolinic acid" [P]. 中国发明专利, 专利号 CN 115153406 A, 授权公告日 2023-12-01.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2024, 961, (12), 6262-6283.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2020, 571, 7256-7279.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-6-(difluoromethyl)-3-hydroxypicolinic acid Using HRMS and NMR". Chromatographia, 2019, 1775, (8), 8623-8652.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2020, 672, (1), 2618-2645.