发明人李文辉,何建平,唐晓军. "Method for the Synthesis of Leflunomide EP Impurity C" [P]. 中国发明专利, 专利号 CN 111766845 B, 授权公告日 2024-05-10.
Chen K W, Brown S R, Kumar R. "A Process for Preparing High-Purity Leflunomide EP Impurity C" [P]. US Patent, US 9842992 B2, 2017-05-05.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 来氟米特EP杂质C in Pharmaceutical Formulations". J. Agric. Food Chem., 2021, 2249, 2694-2708.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 来氟米特EP杂质C as an Impurity". J. Pharm. Biomed. Anal., 2024, 508, 281-310.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Leflunomide EP Impurity C Using HRMS and NMR". Biomed. Chromatogr., 2018, 1102, (10), 1412-1431.