Patel M V, Fischer A B, Davis P L. "一种托法替布杂质38的合成方法" [P]. US Patent, US 10880716 B2, 2024-01-01.
发明人徐明华,钱学锋,孙丽萍. "Method for the Synthesis of Tofacitinib Impurity 38" [P]. 中国发明专利, 专利号 CN 111424259 B, 授权公告日 2023-12-08.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 托法替布杂质38 in Pharmaceutical Formulations". Anal. Methods, 2010, 658, 7951-7954.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 托法替布杂质38 as an Impurity". Molecules, 2018, 1566, (10), 5002-5014.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Tofacitinib Impurity 38 Using HRMS and NMR". Chromatographia, 2011, 212, (6), 580-586.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 托法替布杂质38 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2023, 2279, (3), 7117-7130.