发明人冯建国,杨光,沈红梅. "一种尼达尼布杂质49的合成方法" [P]. 中国发明专利, 专利号 CN 116763082 A, 授权公告日 2017-06-28.
发明人郭海燕,胡光,罗永刚. "Method for the Synthesis of Nintedanib Impurity 49" [P]. 中国发明专利, 专利号 CN 114750698 B, 授权公告日 2018-01-26.
Fischer A B, Thompson G K, Roberts E F. "A Process for Preparing High-Purity Nintedanib Impurity 49" [P]. US Patent, US 10810005 B2, 2017-10-06.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 尼达尼布杂质49 in Pharmaceutical Formulations". J. Chromatogr. A, 2022, 2003, (3), 3035-3050.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 尼达尼布杂质49 as an Impurity". Biomed. Chromatogr., 2012, 1118, 744-772.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Nintedanib Impurity 49 Using HRMS and NMR". Chromatographia, 2018, 1424, 9845-9871.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate 尼达尼布杂质49 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2020, 2457, (6), 3400-3420.