Hughes D C, Roberts E F, Kumar R. "Method for the Synthesis of Nintedanib Impurity 185" [P]. US Patent, US 9266180 B2, 2024-04-01.
Björnsson E, Johansson L, Nowak P. "A Process for Preparing High-Purity Nintedanib Impurity 185" [P]. European Patent, EP 3543731 A1, 2025-05-10.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 尼达尼布杂质185 in Pharmaceutical Formulations". Chromatographia, 2020, 1342, 3797-3807.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 尼达尼布杂质185 as an Impurity". Environ. Sci. Technol., 2018, 111, (12), 7292-7313.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Nintedanib Impurity 185 Using HRMS and NMR". Anal. Methods, 2018, 275, (9), 2448-2461.