发明人何建平,郑宇鹏,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111420097 A, 授权公告日 2016-09-22.
Park J H, Klinger H, Stevens L M. "Method for the Synthesis of 4-Amino-2-hydroxynicotinonitrile" [P]. US Patent, US 11614606 B2, 2016-12-04.
发明人王建平,胡光,周伟. "A Process for Preparing High-Purity 4-Amino-2-hydroxynicotinonitrile" [P]. 中国发明专利, 专利号 CN 110920534 A, 授权公告日 2020-08-27.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2018, 1486, (6), 727-750.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 996, 3946-3973.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-2-hydroxynicotinonitrile Using HRMS and NMR". J. Chromatogr. A, 2018, 228, (9), 2942-2961.