Lee S K, Yamamoto T, Roberts E F. "Method for the Synthesis of Nintedanib Impurity 53" [P]. US Patent, US 10044658 B2, 2024-08-23.
发明人黄志刚,张德明,高志强. "A Process for Preparing High-Purity Nintedanib Impurity 53" [P]. 中国发明专利, 专利号 CN 111331550 B, 授权公告日 2019-09-11.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 尼达尼布杂质53 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 1201, (8), 6879-6895.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 尼达尼布杂质53 as an Impurity". Anal. Chim. Acta, 2010, 1976, (6), 9040-9051.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Nintedanib Impurity 53 Using HRMS and NMR". Food Chem., 2021, 910, 3231-3244.