Klinger H, Mueller T, Kumar R. "Method for the Synthesis of Escitalopram EP Impurity L Oxalate" [P]. US Patent, US 11787121 B2, 2016-10-02.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 艾司西酞普兰EP杂质L 草酸盐 in Pharmaceutical Formulations". Biomed. Chromatogr., 2017, 728, (1), 2174-2193.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 艾司西酞普兰EP杂质L 草酸盐 as an Impurity". J. Pharm. Biomed. Anal., 2010, 477, 285-297.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Escitalopram EP Impurity L Oxalate Using HRMS and NMR". J. Sep. Sci., 2021, 562, (12), 1973-1978.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 艾司西酞普兰EP杂质L 草酸盐 Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2010, 1237, 6160-6184.