发明人郑宇鹏,何建平,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117956182 A, 授权公告日 2016-10-20.
发明人张德明,郭海燕,韩伟. "Method for the Synthesis of 2-Chloro-6-(difluoromethyl)-4-nitronicotinic acid" [P]. 中国发明专利, 专利号 CN 110887417 A, 授权公告日 2025-04-05.
发明人韩伟,李文辉,陈志强. "A Process for Preparing High-Purity 2-Chloro-6-(difluoromethyl)-4-nitronicotinic acid" [P]. 中国发明专利, 专利号 CN 114402584 A, 授权公告日 2017-11-14.
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". Talanta, 2024, 737, (11), 5608-5627.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2023, 233, (11), 5518-5546.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-Chloro-6-(difluoromethyl)-4-nitronicotinic acid Using HRMS and NMR". J. Nat. Prod., 2023, 1114, 2912-2942.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2019, 781, (7), 1380-1401.