Klinger H, Chen K W, Kumar R. "一种奥洛他定杂质18的合成方法" [P]. US Patent, US 9335280 B2, 2015-07-19.
发明人林芳,沈红梅,韩伟. "Method for the Synthesis of Olopatadine Impurity 18" [P]. 中国发明专利, 专利号 CN 112830525 A, 授权公告日 2020-10-14.
发明人赵玉洁,林芳,韩伟. "A Process for Preparing High-Purity Olopatadine Impurity 18" [P]. 中国发明专利, 专利号 CN 113782640 A, 授权公告日 2015-06-28.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 奥洛他定杂质18 in Pharmaceutical Formulations". Anal. Chim. Acta, 2025, 1518, (9), 3285-3301.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 奥洛他定杂质18 as an Impurity". Anal. Chem., 2024, 957, 9548-9556.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Olopatadine Impurity 18 Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 1300, (5), 2467-2472.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 奥洛他定杂质18 Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2014, 1723, (9), 8159-8169.