发明人李文辉,周伟,孙丽萍. "Method for the Synthesis of 5,6-Diamino-2-(difluoromethyl)nicotinic acid" [P]. 中国发明专利, 专利号 CN 114601755 A, 授权公告日 2018-03-18.
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". J. Chromatogr. A, 2017, 2341, (5), 7827-7855.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 1386, (5), 472-478.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-Diamino-2-(difluoromethyl)nicotinic acid Using HRMS and NMR". Phytochemistry, 2025, 1176, (7), 1871-1886.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2021, 254, (11), 7587-7600.