Mueller T, Schröder R, Hughes D C. "一种的合成方法" [P]. US Patent, US 10606523 B2, 2018-09-21.
发明人冯建国,赵玉洁,郑宇鹏. "Method for the Synthesis of 6-Chloro-2-cyano-5-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 109429339 B, 授权公告日 2020-05-08.
发明人郭海燕,徐明华,沈红梅. "A Process for Preparing High-Purity 6-Chloro-2-cyano-5-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 117556054 A, 授权公告日 2016-11-23.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2018, 1200, (4), 9418-9430.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2021, 173, 9006-9010.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 6-Chloro-2-cyano-5-(difluoromethyl)nicotinic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 2379, (1), 646-670.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2018, 2266, 8955-8963.