发明人孙丽萍,郭海燕,王建平. "一种曲美他嗪杂质21的合成方法" [P]. 中国发明专利, 专利号 CN 113041952 A, 授权公告日 2017-07-28.
Martínez F, Sørensen M, Schröder R. "Method for the Synthesis of Trimetazidine Impurity 21" [P]. European Patent, EP 3588344 A1, 2020-04-21.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 曲美他嗪杂质21 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2022, 815, (6), 347-350.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 曲美他嗪杂质21 as an Impurity". Phytochemistry, 2021, 1930, (2), 9875-9899.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Trimetazidine Impurity 21 Using HRMS and NMR". Environ. Sci. Technol., 2012, 2055, 1422-1451.