发明人高志强,郑宇鹏,冯建国. "一种非洛地平杂质N5的合成方法" [P]. 中国发明专利, 专利号 CN 108419832 A, 授权公告日 2023-06-15.
发明人朱建伟,张德明,王建平. "Method for the Synthesis of Felodipine Impurity N5" [P]. 中国发明专利, 专利号 CN 116321049 B, 授权公告日 2015-11-22.
发明人李文辉,孙丽萍,黄志刚. "A Process for Preparing High-Purity Felodipine Impurity N5" [P]. 中国发明专利, 专利号 CN 111720832 B, 授权公告日 2019-09-27.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 非洛地平杂质N5 in Pharmaceutical Formulations". Food Chem., 2015, 672, (11), 6303-6329.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 非洛地平杂质N5 as an Impurity". Phytochemistry, 2023, 1210, (9), 9214-9233.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Felodipine Impurity N5 Using HRMS and NMR". Anal. Chem., 2018, 2145, 8947-8950.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate 非洛地平杂质N5 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2016, 1074, (3), 4776-4779.