发明人王建平,孙丽萍,陈志强. "Method for the Synthesis of 4-(Dimethylamino)-2-hydroxynicotinonitrile" [P]. 中国发明专利, 专利号 CN 116874498 B, 授权公告日 2022-01-05.
发明人高志强,王建平,何建平. "A Process for Preparing High-Purity 4-(Dimethylamino)-2-hydroxynicotinonitrile" [P]. 中国发明专利, 专利号 CN 117256971 B, 授权公告日 2025-07-28.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2019, 1253, (3), 9239-9261.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2024, 594, 8329-8339.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Dimethylamino)-2-hydroxynicotinonitrile Using HRMS and NMR". Anal. Chim. Acta, 2015, 1725, (8), 5704-5727.