Schröder R, Johansson L, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3260516 A1, 2023-08-21.
Björnsson E, Rossi M, Mueller T C. "Method for the Synthesis of Citalopram Impurity 23" [P]. European Patent, EP 3226985 A1, 2020-11-16.
发明人张德明,胡光,林芳. "A Process for Preparing High-Purity Citalopram Impurity 23" [P]. 中国发明专利, 专利号 CN 109693649 B, 授权公告日 2023-12-24.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2017, 452, 704-725.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2016, 802, (5), 801-821.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Citalopram Impurity 23 Using HRMS and NMR". J. Sep. Sci., 2025, 600, 3421-3445.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 875, (10), 2349-2373.