O'Brien P Q, Park J H, Brown S R. "一种奥洛他定杂质20的合成方法" [P]. US Patent, US 11728753 B2, 2022-08-22.
发明人唐晓军,孙丽萍,韩伟. "Method for the Synthesis of Olopatadine Impurity 20" [P]. 中国发明专利, 专利号 CN 111158861 B, 授权公告日 2017-11-18.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of 奥洛他定杂质20 in Pharmaceutical Formulations". J. Agric. Food Chem., 2024, 844, (7), 6480-6490.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 奥洛他定杂质20 as an Impurity". J. Chromatogr. A, 2018, 699, 2313-2341.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Olopatadine Impurity 20 Using HRMS and NMR". Food Chem., 2019, 1565, 9306-9328.