发明人孙丽萍,高志强,胡光. "Method for the Synthesis of 4-Amino-6-chloro-5-(difluoromethyl)picolinonitrile" [P]. 中国发明专利, 专利号 CN 113331295 B, 授权公告日 2025-05-19.
Lefèvre J P, Sørensen M, Schröder R. "A Process for Preparing High-Purity 4-Amino-6-chloro-5-(difluoromethyl)picolinonitrile" [P]. European Patent, EP 3861573 A1, 2022-03-14.
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". Rapid Commun. Mass Spectrom., 2011, 1823, (4), 1235-1257.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2013, 524, (4), 8059-8088.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-6-chloro-5-(difluoromethyl)picolinonitrile Using HRMS and NMR". Environ. Sci. Technol., 2016, 1933, 5287-5297.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2015, 1244, (5), 6482-6493.