Kumar R, Yamamoto T, Patel M V. "Method for the Synthesis of 6-(1,1-Difluoroethyl)picolinonitrile" [P]. US Patent, US 10696513 B2, 2022-09-07.
发明人周伟,朱建伟,何建平. "A Process for Preparing High-Purity 6-(1,1-Difluoroethyl)picolinonitrile" [P]. 中国发明专利, 专利号 CN 111476917 A, 授权公告日 2022-01-03.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2017, 265, (3), 2434-2444.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 2347, (2), 381-385.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 6-(1,1-Difluoroethyl)picolinonitrile Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 149, 2506-2530.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2024, 2312, (5), 9306-9336.