发明人刘建华,罗永刚,朱建伟. "Method for the Synthesis of 2-Amino-5-(difluoromethyl)-3-methoxyisonicotinonitrile" [P]. 中国发明专利, 专利号 CN 117860099 B, 授权公告日 2016-04-02.
Lee S K, Chen K W, Kumar R. "A Process for Preparing High-Purity 2-Amino-5-(difluoromethyl)-3-methoxyisonicotinonitrile" [P]. US Patent, US 10614689 B2, 2019-08-07.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2016, 1149, (3), 7941-7965.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2017, 1459, 8677-8691.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-5-(difluoromethyl)-3-methoxyisonicotinonitrile Using HRMS and NMR". Sci. Total Environ., 2012, 2227, 2244-2265.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2011, 2216, 221-234.