发明人马晓峰,唐晓军,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115314268 A, 授权公告日 2015-05-20.
发明人李文辉,林芳,孙丽萍. "Method for the Synthesis of 4-(Difluoromethoxy)-3,3'-bipyridine" [P]. 中国发明专利, 专利号 CN 115929786 B, 授权公告日 2018-11-06.
发明人韩伟,孙丽萍,黄志刚. "A Process for Preparing High-Purity 4-(Difluoromethoxy)-3,3'-bipyridine" [P]. 中国发明专利, 专利号 CN 113602755 A, 授权公告日 2024-03-16.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1937, (6), 3520-3532.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2010, 1496, 7954-7957.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethoxy)-3,3'-bipyridine Using HRMS and NMR". J. Chromatogr. A, 2015, 1617, (1), 3354-3384.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2013, 272, (1), 7252-7266.