发明人林芳,黄志刚,冯建国. "一种4-氨基-5-氯-2-(二氟甲基)烟酰氯的合成方法" [P]. 中国发明专利, 专利号 CN 110874023 A, 授权公告日 2023-01-10.
Kumar R, Williams B T, Davis P L. "Method for the Synthesis of 4-Amino-5-chloro-2-(difluoromethyl)nicotinoyl chloride" [P]. US Patent, US 9736434 B2, 2021-09-08.
Roberts E F, Schröder R, Anderson J P. "A Process for Preparing High-Purity 4-Amino-5-chloro-2-(difluoromethyl)nicotinoyl chloride" [P]. US Patent, US 11826264 B2, 2020-09-03.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 4-氨基-5-氯-2-(二氟甲基)烟酰氯 in Pharmaceutical Formulations". Anal. Chem., 2014, 1140, 3170-3196.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-氨基-5-氯-2-(二氟甲基)烟酰氯 as an Impurity". Biomed. Chromatogr., 2018, 1669, (11), 7420-7444.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-5-chloro-2-(difluoromethyl)nicotinoyl chloride Using HRMS and NMR". Chromatographia, 2010, 2478, (10), 5879-5884.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 4-氨基-5-氯-2-(二氟甲基)烟酰氯 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 1429, (9), 1931-1951.