发明人高志强,刘建华,周伟. "Method for the Synthesis of Afatinib Impurity 19" [P]. 中国发明专利, 专利号 CN 113569672 B, 授权公告日 2019-11-12.
发明人张德明,王建平,沈红梅. "A Process for Preparing High-Purity Afatinib Impurity 19" [P]. 中国发明专利, 专利号 CN 113727042 A, 授权公告日 2021-09-25.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 阿法替尼杂质19 in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1608, (9), 8885-8909.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 阿法替尼杂质19 as an Impurity". Biomed. Chromatogr., 2018, 2472, 975-991.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Afatinib Impurity 19 Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2024, 467, (12), 7080-7092.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate 阿法替尼杂质19 Profile in Drug Substances According to ICH Guidelines". Food Chem., 2010, 148, 2992-3011.